40450816 has 36 divisors (see below), whose sum is σ = 92282512. Its totient is φ = 17335296.

The previous prime is 40450801. The next prime is 40450841. The reversal of 40450816 is 61805404.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 9495 + ... + 13078.

Almost surely, 2^40450816 is an apocalyptic number.

It is an amenable number.

40450816 is an abundant number, since it is smaller than the sum of its proper divisors (51831696).

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

40450816 is an equidigital number, since it uses as much as digits as its factorization.

40450816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22596 (or 22582 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 40450816 is about 6360.0955967658. The cubic root of 40450816 is about 343.2752000945.

The spelling of 40450816 in words is "forty million, four hundred fifty thousand, eight hundred sixteen".