40238872 has 16 divisors (see below), whose sum is σ = 76872240. Its totient is φ = 19739616.

The previous prime is 40238843. The next prime is 40238879. The reversal of 40238872 is 27883204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40238879) 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, 47028 + ... + 47875.

It is an arithmetic number, because the mean of its divisors is an integer number (4804515).

Almost surely, 2^40238872 is an apocalyptic number.

It is an amenable number.

40238872 is a deficient number, since it is larger than the sum of its proper divisors (36633368).

40238872 is a wasteful number, since it uses less digits than its factorization.

40238872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94962 (or 94958 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 40238872 is about 6343.4117003392. The cubic root of 40238872 is about 342.6746142854.

The spelling of 40238872 in words is "forty million, two hundred thirty-eight thousand, eight hundred seventy-two".