40056740 has 24 divisors (see below), whose sum is σ = 84239232. Its totient is φ = 15999840.

The previous prime is 40056739. The next prime is 40056749. The reversal of 40056740 is 4765004.

40056740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40056749) 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 7 ways as a sum of consecutive naturals, for example, 23807 + ... + 25433.

It is an arithmetic number, because the mean of its divisors is an integer number (3509968).

Almost surely, 2^40056740 is an apocalyptic number.

It is an amenable number.

40056740 is an abundant number, since it is smaller than the sum of its proper divisors (44182492).

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

40056740 is a wasteful number, since it uses less digits than its factorization.

40056740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2867 (or 2865 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 40056740 is about 6329.0394215868. The cubic root of 40056740 is about 342.1568196606.

The spelling of 40056740 in words is "forty million, fifty-six thousand, seven hundred forty".