45539140 has 12 divisors (see below), whose sum is σ = 95632236. Its totient is φ = 18215648.

The previous prime is 45539129. The next prime is 45539159. The reversal of 45539140 is 4193554.

It can be written as a sum of positive squares in 2 ways, for example, as 5419584 + 40119556 = 2328^2 + 6334^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1138459 + ... + 1138498.

It is an arithmetic number, because the mean of its divisors is an integer number (7969353).

Almost surely, 2^45539140 is an apocalyptic number.

It is an amenable number.

45539140 is an abundant number, since it is smaller than the sum of its proper divisors (50093096).

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

45539140 is a wasteful number, since it uses less digits than its factorization.

45539140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276966 (or 2276964 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 45539140 is about 6748.2694077815. The cubic root of 45539140 is about 357.1041864415.

The spelling of 45539140 in words is "forty-five million, five hundred thirty-nine thousand, one hundred forty".