45274491 has 8 divisors (see below), whose sum is σ = 67073360. Its totient is φ = 30182976.

The previous prime is 45274483. The next prime is 45274531. The reversal of 45274491 is 19447254.

It is a happy number.

45274491 is a `hidden beast` number, since 4 + 527 + 44 + 91 = 666.

It is not a de Polignac number, because 45274491 - 2³ = 45274483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45274441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 838390 + ... + 838443.

It is an arithmetic number, because the mean of its divisors is an integer number (8384170).

Almost surely, 2^45274491 is an apocalyptic number.

45274491 is a deficient number, since it is larger than the sum of its proper divisors (21798869).

45274491 is a wasteful number, since it uses less digits than its factorization.

45274491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676842 (or 1676836 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 45274491 is about 6728.6321789796. The cubic root of 45274491 is about 356.4110761899.

The spelling of 45274491 in words is "forty-five million, two hundred seventy-four thousand, four hundred ninety-one".