45409252 has 24 divisors (see below), whose sum is σ = 90961920. Its totient is φ = 19430400.

The previous prime is 45409241. The next prime is 45409253. The reversal of 45409252 is 25290454.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (45409253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31524 + ... + 32932.

It is an arithmetic number, because the mean of its divisors is an integer number (3790080).

Almost surely, 2^45409252 is an apocalyptic number.

It is an amenable number.

45409252 is an abundant number, since it is smaller than the sum of its proper divisors (45552668).

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

45409252 is a wasteful number, since it uses less digits than its factorization.

45409252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2571 (or 2569 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 45409252 is about 6738.6387349375. The cubic root of 45409252 is about 356.7643489787.

The spelling of 45409252 in words is "forty-five million, four hundred nine thousand, two hundred fifty-two".