40045516 has 12 divisors (see below), whose sum is σ = 80091088. Its totient is φ = 17162352.

The previous prime is 40045501. The next prime is 40045517. The reversal of 40045516 is 61554004.

40045516 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (40045517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 715071 + ... + 715126.

Almost surely, 2^40045516 is an apocalyptic number.

It is an amenable number.

40045516 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40045516 is a wasteful number, since it uses less digits than its factorization.

40045516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430208 (or 1430206 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 40045516 is about 6328.1526530260. The cubic root of 40045516 is about 342.1248589394.

The spelling of 40045516 in words is "forty million, forty-five thousand, five hundred sixteen".