45911790 has 48 divisors (see below), whose sum is σ = 125658000. Its totient is φ = 11598336.

The previous prime is 45911773. The next prime is 45911791. The reversal of 45911790 is 9711954.

45911790 is a `hidden beast` number, since 459 + 117 + 90 = 666.

It is a super-2 number, since 2×45911790² = 4215784922008200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45911791) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11715 + ... + 15134.

It is an arithmetic number, because the mean of its divisors is an integer number (2617875).

Almost surely, 2^45911790 is an apocalyptic number.

45911790 is an abundant number, since it is smaller than the sum of its proper divisors (79746210).

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

45911790 is a wasteful number, since it uses less digits than its factorization.

45911790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26881 (or 26878 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 45911790 is about 6775.8239351388. The cubic root of 45911790 is about 358.0756110907.

The spelling of 45911790 in words is "forty-five million, nine hundred eleven thousand, seven hundred ninety".