45331900 has 36 divisors (see below), whose sum is σ = 98853048. Its totient is φ = 18043840.

The previous prime is 45331849. The next prime is 45331903. The reversal of 45331900 is 913354.

It is a super-2 number, since 2×45331900² = 4109962315220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45331903) 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, 21702 + ... + 23698.

It is an arithmetic number, because the mean of its divisors is an integer number (2745918).

Almost surely, 2^45331900 is an apocalyptic number.

It is an amenable number.

45331900 is an abundant number, since it is smaller than the sum of its proper divisors (53521148).

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

45331900 is a wasteful number, since it uses less digits than its factorization.

45331900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238 (or 2231 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 45331900 is about 6732.8968505391. The cubic root of 45331900 is about 356.5616581232.

The spelling of 45331900 in words is "forty-five million, three hundred thirty-one thousand, nine hundred".