45644236 has 72 divisors (see below), whose sum is σ = 95319504. Its totient is φ = 18944640.

The previous prime is 45644233. The next prime is 45644257. The reversal of 45644236 is 63244654.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a pancake number, because a pancake can be divided into 45644236 parts by 9554 straight cuts.

It is not an unprimeable number, because it can be changed into a prime (45644233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 861186 + ... + 861238.

It is an arithmetic number, because the mean of its divisors is an integer number (1323882).

Almost surely, 2^45644236 is an apocalyptic number.

45644236 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

45644236 is an abundant number, since it is smaller than the sum of its proper divisors (49675268).

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

45644236 is a wasteful number, since it uses less digits than its factorization.

45644236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 126 counting only the distinct ones).

The product of its digits is 69120, while the sum is 34.

The square root of 45644236 is about 6756.0518056036. The cubic root of 45644236 is about 357.3786857519.

The spelling of 45644236 in words is "forty-five million, six hundred forty-four thousand, two hundred thirty-six".