45442656 has 72 divisors (see below), whose sum is σ = 147695184. Its totient is φ = 12983040.

The previous prime is 45442651. The next prime is 45442679. The reversal of 45442656 is 65624454.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a self number, because there is not a number n which added to its sum of digits gives 45442656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45442651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9255 + ... + 13286.

It is an arithmetic number, because the mean of its divisors is an integer number (2051322).

Almost surely, 2^45442656 is an apocalyptic number.

It is an amenable number.

45442656 is an abundant number, since it is smaller than the sum of its proper divisors (102252528).

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

45442656 is a wasteful number, since it uses less digits than its factorization.

45442656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22564 (or 22553 counting only the distinct ones).

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

The square root of 45442656 is about 6741.1168214176. The cubic root of 45442656 is about 356.8518086538.

The spelling of 45442656 in words is "forty-five million, four hundred forty-two thousand, six hundred fifty-six".