45432291 has 16 divisors (see below), whose sum is σ = 63979776. Its totient is φ = 28618656.

The previous prime is 45432281. The next prime is 45432323. The reversal of 45432291 is 19223454.

It is not a de Polignac number, because 45432291 - 2⁵ = 45432259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45432281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1761 + ... + 9693.

It is an arithmetic number, because the mean of its divisors is an integer number (3998736).

Almost surely, 2^45432291 is an apocalyptic number.

45432291 is a deficient number, since it is larger than the sum of its proper divisors (18547485).

45432291 is a wasteful number, since it uses less digits than its factorization.

45432291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8042.

The product of its digits is 8640, while the sum is 30.

The square root of 45432291 is about 6740.3479880493. The cubic root of 45432291 is about 356.8246751881.

The spelling of 45432291 in words is "forty-five million, four hundred thirty-two thousand, two hundred ninety-one".