45972279 has 20 divisors (see below), whose sum is σ = 71046360. Its totient is φ = 29589840.

The previous prime is 45972257. The next prime is 45972307. The reversal of 45972279 is 97227954.

It is not a de Polignac number, because 45972279 - 2⁸ = 45972023 is a prime.

It is a super-2 number, since 2×45972279² = 4226900872907682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45972379) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7437 + ... + 12134.

It is an arithmetic number, because the mean of its divisors is an integer number (3552318).

Almost surely, 2^45972279 is an apocalyptic number.

45972279 is a deficient number, since it is larger than the sum of its proper divisors (25074081).

45972279 is a wasteful number, since it uses less digits than its factorization.

45972279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19612 (or 19603 counting only the distinct ones).

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

The square root of 45972279 is about 6780.2860559124. The cubic root of 45972279 is about 358.2327975154.

The spelling of 45972279 in words is "forty-five million, nine hundred seventy-two thousand, two hundred seventy-nine".