40815004 has 12 divisors (see below), whose sum is σ = 71550864. Its totient is φ = 20371904.

The previous prime is 40814999. The next prime is 40815007. The reversal of 40815004 is 40051804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40815007) 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, 6232 + ... + 10975.

It is an arithmetic number, because the mean of its divisors is an integer number (5962572).

Almost surely, 2^40815004 is an apocalyptic number.

It is an amenable number.

40815004 is a deficient number, since it is larger than the sum of its proper divisors (30735860).

40815004 is a wasteful number, since it uses less digits than its factorization.

40815004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17804 (or 17802 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 40815004 is about 6388.6621447687. The cubic root of 40815004 is about 344.3023189644.

Adding to 40815004 its reverse (40051804), we get a palindrome (80866808).

The spelling of 40815004 in words is "forty million, eight hundred fifteen thousand, four".