40018824 has 48 divisors (see below), whose sum is σ = 108676620. Its totient is φ = 13303680.

The previous prime is 40018757. The next prime is 40018859. The reversal of 40018824 is 42881004.

It can be written as a sum of positive squares in 2 ways, for example, as 37822500 + 2196324 = 6150^2 + 1482^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48334 + ... + 49154.

Almost surely, 2^40018824 is an apocalyptic number.

It is an amenable number.

40018824 is an abundant number, since it is smaller than the sum of its proper divisors (68657796).

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

40018824 is a wasteful number, since it uses less digits than its factorization.

40018824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510 (or 1503 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 40018824 is about 6326.0433131619. The cubic root of 40018824 is about 342.0488285674.

Adding to 40018824 its reverse (42881004), we get a palindrome (82899828).

The spelling of 40018824 in words is "forty million, eighteen thousand, eight hundred twenty-four".