3545421444 has 72 divisors (see below), whose sum is σ = 9082644480. Its totient is φ = 1165963392.

The previous prime is 3545421427. The next prime is 3545421461. The reversal of 3545421444 is 4441245453.

3545421444 is a `hidden beast` number, since 354 + 54 + 214 + 44 = 666.

It is an interprime number because it is at equal distance from previous prime (3545421427) and next prime (3545421461).

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 = 3545421399 and 3545421408.

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, 1943917 + ... + 1945739.

It is an arithmetic number, because the mean of its divisors is an integer number (126147840).

Almost surely, 2^3545421444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3545421444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4541322240).

3545421444 is an abundant number, since it is smaller than the sum of its proper divisors (5537223036).

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

3545421444 is a wasteful number, since it uses less digits than its factorization.

3545421444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2529 (or 2524 counting only the distinct ones).

The product of its digits is 153600, while the sum is 36.

The square root of 3545421444 is about 59543.4416539723. The cubic root of 3545421444 is about 1524.8341941386.

Adding to 3545421444 its reverse (4441245453), we get a palindrome (7986666897).

The spelling of 3545421444 in words is "three billion, five hundred forty-five million, four hundred twenty-one thousand, four hundred forty-four".