45979740 has 36 divisors (see below), whose sum is σ = 139472424. Its totient is φ = 12261216.

The previous prime is 45979723. The next prime is 45979751. The reversal of 45979740 is 4797954.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×45979740² = 4228272980935200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127542 + ... + 127901.

It is an arithmetic number, because the mean of its divisors is an integer number (3874234).

Almost surely, 2^45979740 is an apocalyptic number.

It is an amenable number.

45979740 is an abundant number, since it is smaller than the sum of its proper divisors (93492684).

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

45979740 is a wasteful number, since it uses less digits than its factorization.

45979740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255458 (or 255453 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 45979740 is about 6780.8362316163. The cubic root of 45979740 is about 358.2521760799.

The spelling of 45979740 in words is "forty-five million, nine hundred seventy-nine thousand, seven hundred forty".