40004856 has 48 divisors (see below), whose sum is σ = 109067400. Its totient is φ = 13246272.

The previous prime is 40004851. The next prime is 40004857. The reversal of 40004856 is 65840004.

40004856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40004851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9535 + ... + 13073.

Almost surely, 2^40004856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40004856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54533700).

40004856 is an abundant number, since it is smaller than the sum of its proper divisors (69062544).

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

40004856 is a wasteful number, since it uses less digits than its factorization.

40004856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3708 (or 3701 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 40004856 is about 6324.9392091940. The cubic root of 40004856 is about 342.0090281807.

The spelling of 40004856 in words is "forty million, four thousand, eight hundred fifty-six".