3544402140 has 72 divisors (see below), whose sum is σ = 10799687808. Its totient is φ = 940924800.

The previous prime is 3544402129. The next prime is 3544402163. The reversal of 3544402140 is 412044453.

It is a happy number.

3544402140 is a `hidden beast` number, since 3 + 5 + 4 + 440 + 214 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4011 + ... + 84290.

It is an arithmetic number, because the mean of its divisors is an integer number (149995664).

Almost surely, 2^3544402140 is an apocalyptic number.

3544402140 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 3544402140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5399843904).

3544402140 is an abundant number, since it is smaller than the sum of its proper divisors (7255285668).

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

3544402140 is a wasteful number, since it uses less digits than its factorization.

3544402140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88539 (or 88534 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 3544402140 is about 59534.8817081213. The cubic root of 3544402140 is about 1524.6880508575.

Adding to 3544402140 its reverse (412044453), we get a palindrome (3956446593).

The spelling of 3544402140 in words is "three billion, five hundred forty-four million, four hundred two thousand, one hundred forty".