40045456 has 20 divisors (see below), whose sum is σ = 84641904. Its totient is φ = 18202400.

The previous prime is 40045441. The next prime is 40045487. The reversal of 40045456 is 65454004.

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, 113590 + ... + 113941.

Almost surely, 2^40045456 is an apocalyptic number.

It is an amenable number.

40045456 is an abundant number, since it is smaller than the sum of its proper divisors (44596448).

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

40045456 is a wasteful number, since it uses less digits than its factorization.

40045456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227550 (or 227544 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 40045456 is about 6328.1479123042. The cubic root of 40045456 is about 342.1246880713.

The spelling of 40045456 in words is "forty million, forty-five thousand, four hundred fifty-six".