3543805440 has 720 divisors, whose sum is σ = 14809128048. Its totient is φ = 780337152.

The previous prime is 3543805427. The next prime is 3543805453. The reversal of 3543805440 is 445083453.

3543805440 is a `hidden beast` number, since 35 + 4 + 3 + 80 + 544 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (3543805427) and next prime (3543805453).

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 3543805395 and 3543805404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 48545244 + ... + 48545316.

Almost surely, 2^3543805440 is an apocalyptic number.

3543805440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3543805440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7404564024).

3543805440 is an abundant number, since it is smaller than the sum of its proper divisors (11265322608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3543805440 is a wasteful number, since it uses less digits than its factorization.

3543805440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The square root of 3543805440 is about 59529.8701493628. The cubic root of 3543805440 is about 1524.6024856590.

Adding to 3543805440 its reverse (445083453), we get a palindrome (3988888893).

The spelling of 3543805440 in words is "three billion, five hundred forty-three million, eight hundred five thousand, four hundred forty".