45563920 has 40 divisors (see below), whose sum is σ = 110546496. Its totient is φ = 17432448.

The previous prime is 45563887. The next prime is 45563923. The reversal of 45563920 is 2936554.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (34) 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 (45563923) 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, 10542 + ... + 14221.

Almost surely, 2^45563920 is an apocalyptic number.

45563920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45563920 is an abundant number, since it is smaller than the sum of its proper divisors (64982576).

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

45563920 is a wasteful number, since it uses less digits than its factorization.

45563920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24799 (or 24793 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 45563920 is about 6750.1051843656. The cubic root of 45563920 is about 357.1689471226.

The spelling of 45563920 in words is "forty-five million, five hundred sixty-three thousand, nine hundred twenty".