45190900 has 18 divisors (see below), whose sum is σ = 98064470. Its totient is φ = 18076320.

The previous prime is 45190891. The next prime is 45190909. The reversal of 45190900 is 909154.

It is an interprime number because it is at equal distance from previous prime (45190891) and next prime (45190909).

It can be written as a sum of positive squares in 3 ways, for example, as 2862864 + 42328036 = 1692^2 + 6506^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45190909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 225855 + ... + 226054.

Almost surely, 2^45190900 is an apocalyptic number.

It is an amenable number.

45190900 is an abundant number, since it is smaller than the sum of its proper divisors (52873570).

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

45190900 is a wasteful number, since it uses less digits than its factorization.

45190900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451923 (or 451916 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 45190900 is about 6722.4177198386. The cubic root of 45190900 is about 356.1915919428.

The spelling of 45190900 in words is "forty-five million, one hundred ninety thousand, nine hundred".