40056384 has 28 divisors (see below), whose sum is σ = 105983024. Its totient is φ = 13352064.

The previous prime is 40056383. The next prime is 40056421. The reversal of 40056384 is 48365004.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (40056383) 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, 104122 + ... + 104505.

It is an arithmetic number, because the mean of its divisors is an integer number (3785108).

Almost surely, 2^40056384 is an apocalyptic number.

It is an amenable number.

40056384 is an abundant number, since it is smaller than the sum of its proper divisors (65926640).

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

40056384 is a wasteful number, since it uses less digits than its factorization.

40056384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208642 (or 208632 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 40056384 is about 6329.0112971933. The cubic root of 40056384 is about 342.1558060302.

The spelling of 40056384 in words is "forty million, fifty-six thousand, three hundred eighty-four".