40039604 has 24 divisors (see below), whose sum is σ = 79077600. Its totient is φ = 17571680.

The previous prime is 40039603. The next prime is 40039621. The reversal of 40039604 is 40693004.

40039604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40039603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14414 + ... + 16965.

It is an arithmetic number, because the mean of its divisors is an integer number (3294900).

Almost surely, 2^40039604 is an apocalyptic number.

40039604 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40039604 is a deficient number, since it is larger than the sum of its proper divisors (39037996).

40039604 is a wasteful number, since it uses less digits than its factorization.

40039604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31423 (or 31421 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 40039604 is about 6327.6855168379. The cubic root of 40039604 is about 342.1080219173.

It can be divided in two parts, 400 and 39604, that added together give a palindrome (40004).

The spelling of 40039604 in words is "forty million, thirty-nine thousand, six hundred four".