40036868 has 12 divisors (see below), whose sum is σ = 70126812. Its totient is φ = 20000640.

The previous prime is 40036861. The next prime is 40036873. The reversal of 40036868 is 86863004.

It can be written as a sum of positive squares in 2 ways, for example, as 16144324 + 23892544 = 4018^2 + 4888^2 .

It is a hoax number, since the sum of its digits (35) 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 (40036861) 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, 1496 + ... + 9072.

It is an arithmetic number, because the mean of its divisors is an integer number (5843901).

Almost surely, 2^40036868 is an apocalyptic number.

It is an amenable number.

40036868 is a deficient number, since it is larger than the sum of its proper divisors (30089944).

40036868 is a wasteful number, since it uses less digits than its factorization.

40036868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8902 (or 8900 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 40036868 is about 6327.4693203523. The cubic root of 40036868 is about 342.1002293921.

It can be divided in two parts, 40036 and 868, that added together give a palindrome (40904).

The spelling of 40036868 in words is "forty million, thirty-six thousand, eight hundred sixty-eight".