3645274416 has 80 divisors (see below), whose sum is σ = 11230185984. Its totient is φ = 996221952.

The previous prime is 3645274411. The next prime is 3645274429. The reversal of 3645274416 is 6144725463.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (3645274411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228121 + ... + 243576.

Almost surely, 2^3645274416 is an apocalyptic number.

It is an amenable number.

3645274416 is an abundant number, since it is smaller than the sum of its proper divisors (7584911568).

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

3645274416 is a wasteful number, since it uses less digits than its factorization.

3645274416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471738 (or 471732 counting only the distinct ones).

The product of its digits is 483840, while the sum is 42.

The square root of 3645274416 is about 60376.1079898332. The cubic root of 3645274416 is about 1539.0169720077.

Adding to 3645274416 its reverse (6144725463), we get a palindrome (9789999879).

The spelling of 3645274416 in words is "three billion, six hundred forty-five million, two hundred seventy-four thousand, four hundred sixteen".