45680188 has 18 divisors (see below), whose sum is σ = 81088224. Its totient is φ = 22516704.

The previous prime is 45680171. The next prime is 45680189. The reversal of 45680188 is 88108654.

It is a self number, because there is not a number n which added to its sum of digits gives 45680188.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45680189) 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, 20245 + ... + 22387.

Almost surely, 2^45680188 is an apocalyptic number.

It is an amenable number.

45680188 is a deficient number, since it is larger than the sum of its proper divisors (35408036).

45680188 is a wasteful number, since it uses less digits than its factorization.

45680188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293 (or 2218 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 40.

The square root of 45680188 is about 6758.7120074760. The cubic root of 45680188 is about 357.4724917299.

The spelling of 45680188 in words is "forty-five million, six hundred eighty thousand, one hundred eighty-eight".