45720680 has 32 divisors (see below), whose sum is σ = 103899240. Its totient is φ = 18105600.

The previous prime is 45720679. The next prime is 45720713. The reversal of 45720680 is 8602754.

It can be written as a sum of positive squares in 4 ways, for example, as 44863204 + 857476 = 6698^2 + 926^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1619 + ... + 9698.

Almost surely, 2^45720680 is an apocalyptic number.

45720680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45720680 is an abundant number, since it is smaller than the sum of its proper divisors (58178560).

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

45720680 is a wasteful number, since it uses less digits than its factorization.

45720680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11429 (or 11425 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 45720680 is about 6761.7068850994. The cubic root of 45720680 is about 357.5780845623.

The spelling of 45720680 in words is "forty-five million, seven hundred twenty thousand, six hundred eighty".