40448008 has 16 divisors (see below), whose sum is σ = 76693500. Its totient is φ = 19996416.

The previous prime is 40447969. The next prime is 40448021. The reversal of 40448008 is 80084404.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29833444 + 10614564 = 5462^2 + 3258^2 .

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, 27693 + ... + 29116.

Almost surely, 2^40448008 is an apocalyptic number.

It is an amenable number.

40448008 is a deficient number, since it is larger than the sum of its proper divisors (36245492).

40448008 is a wasteful number, since it uses less digits than its factorization.

40448008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56904 (or 56900 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 40448008 is about 6359.8748415358. The cubic root of 40448008 is about 343.2672567931.

The spelling of 40448008 in words is "forty million, four hundred forty-eight thousand, eight".