45085540 has 24 divisors (see below), whose sum is σ = 94808952. Its totient is φ = 18009600.

The previous prime is 45085529. The next prime is 45085541. The reversal of 45085540 is 4558054.

It can be written as a sum of positive squares in 4 ways, for example, as 7744 + 45077796 = 88^2 + 6714^2 .

It is not an unprimeable number, because it can be changed into a prime (45085541) 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, 23082 + ... + 24958.

It is an arithmetic number, because the mean of its divisors is an integer number (3950373).

Almost surely, 2^45085540 is an apocalyptic number.

It is an amenable number.

45085540 is an abundant number, since it is smaller than the sum of its proper divisors (49723412).

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

45085540 is a wasteful number, since it uses less digits than its factorization.

45085540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3087 (or 3085 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

The square root of 45085540 is about 6714.5766806255. The cubic root of 45085540 is about 355.9145630939.

The spelling of 45085540 in words is "forty-five million, eighty-five thousand, five hundred forty".