40318838 has 16 divisors (see below), whose sum is σ = 69379584. Its totient is φ = 17214120.

The previous prime is 40318813. The next prime is 40318847. The reversal of 40318838 is 83881304.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40318798 and 40318807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1520 + ... + 9107.

It is an arithmetic number, because the mean of its divisors is an integer number (4336224).

Almost surely, 2^40318838 is an apocalyptic number.

40318838 is a deficient number, since it is larger than the sum of its proper divisors (29060746).

40318838 is a wasteful number, since it uses less digits than its factorization.

40318838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10907.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 40318838 is about 6349.7116469963. The cubic root of 40318838 is about 342.9014611527.

The spelling of 40318838 in words is "forty million, three hundred eighteen thousand, eight hundred thirty-eight".