45491392 has 42 divisors (see below), whose sum is σ = 92517468. Its totient is φ = 22188672.

The previous prime is 45491363. The next prime is 45491393. The reversal of 45491392 is 29319454.

It is not an unprimeable number, because it can be changed into a prime (45491393) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 441613 + ... + 441715.

Almost surely, 2^45491392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45491392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46258734).

45491392 is an abundant number, since it is smaller than the sum of its proper divisors (47026076).

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

45491392 is an equidigital number, since it uses as much as digits as its factorization.

45491392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285 (or 172 counting only the distinct ones).

The product of its digits is 38880, while the sum is 37.

The square root of 45491392 is about 6744.7306840229. The cubic root of 45491392 is about 356.9793343288.

The spelling of 45491392 in words is "forty-five million, four hundred ninety-one thousand, three hundred ninety-two".