45220432 has 20 divisors (see below), whose sum is σ = 89101440. Its totient is φ = 22226528.

The previous prime is 45220429. The next prime is 45220433. The reversal of 45220432 is 23402254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45220433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23008 + ... + 24895.

It is an arithmetic number, because the mean of its divisors is an integer number (4455072).

Almost surely, 2^45220432 is an apocalyptic number.

It is an amenable number.

45220432 is a deficient number, since it is larger than the sum of its proper divisors (43881008).

45220432 is a wasteful number, since it uses less digits than its factorization.

45220432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47970 (or 47964 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 45220432 is about 6724.6138922618. The cubic root of 45220432 is about 356.2691647841.

Adding to 45220432 its reverse (23402254), we get a palindrome (68622686).

The spelling of 45220432 in words is "forty-five million, two hundred twenty thousand, four hundred thirty-two".