40804012 has 24 divisors (see below), whose sum is σ = 75814704. Its totient is φ = 19149312.

The previous prime is 40804003. The next prime is 40804013. The reversal of 40804012 is 21040804.

It is a super-2 number, since 2×40804012² = 3329934790592288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40804013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36648 + ... + 37744.

It is an arithmetic number, because the mean of its divisors is an integer number (3158946).

Almost surely, 2^40804012 is an apocalyptic number.

It is an amenable number.

40804012 is a deficient number, since it is larger than the sum of its proper divisors (35010692).

40804012 is a wasteful number, since it uses less digits than its factorization.

40804012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665 (or 1663 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 40804012 is about 6387.8018128305. The cubic root of 40804012 is about 344.2714078573.

Adding to 40804012 its reverse (21040804), we get a palindrome (61844816).

The spelling of 40804012 in words is "forty million, eight hundred four thousand, twelve".