68039404 has 12 divisors (see below), whose sum is σ = 119828464. Its totient is φ = 33802704.

The previous prime is 68039401. The next prime is 68039429. The reversal of 68039404 is 40493086.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 68039404.

It is not an unprimeable number, because it can be changed into a prime (68039401) 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, 53544 + ... + 54799.

Almost surely, 2^68039404 is an apocalyptic number.

It is an amenable number.

68039404 is a deficient number, since it is larger than the sum of its proper divisors (51789060).

68039404 is a wasteful number, since it uses less digits than its factorization.

68039404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108504 (or 108502 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 68039404 is about 8248.6001236573. The cubic root of 68039404 is about 408.2443349376.

The spelling of 68039404 in words is "sixty-eight million, thirty-nine thousand, four hundred four".