67940404 has 12 divisors (see below), whose sum is σ = 135880864. Its totient is φ = 29117304.

The previous prime is 67940393. The next prime is 67940423. The reversal of 67940404 is 40404976.

67940404 is an admirable number.

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 67940404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1213194 + ... + 1213249.

Almost surely, 2^67940404 is an apocalyptic number.

It is an amenable number.

67940404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67940404 is a wasteful number, since it uses less digits than its factorization.

67940404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426454 (or 2426452 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 67940404 is about 8242.5969208739. The cubic root of 67940404 is about 408.0462349885.

The spelling of 67940404 in words is "sixty-seven million, nine hundred forty thousand, four hundred four".