45491886 has 36 divisors (see below), whose sum is σ = 108346056. Its totient is φ = 13784760.

The previous prime is 45491869. The next prime is 45491903. The reversal of 45491886 is 68819454.

It is an interprime number because it is at equal distance from previous prime (45491869) and next prime (45491903).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8266 + ... + 12621.

Almost surely, 2^45491886 is an apocalyptic number.

45491886 is an abundant number, since it is smaller than the sum of its proper divisors (62854170).

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

45491886 is a wasteful number, since it uses less digits than its factorization.

45491886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20917 (or 20903 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 45491886 is about 6744.7673051040. The cubic root of 45491886 is about 356.9806264938.

The spelling of 45491886 in words is "forty-five million, four hundred ninety-one thousand, eight hundred eighty-six".