67939404 has 48 divisors (see below), whose sum is σ = 171305568. Its totient is φ = 20832768.

The previous prime is 67939397. The next prime is 67939409. The reversal of 67939404 is 40493976.

It is a super-4 number, since 4×67939404⁴ (a number of 32 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (67939409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61384 + ... + 62480.

It is an arithmetic number, because the mean of its divisors is an integer number (3568866).

Almost surely, 2^67939404 is an apocalyptic number.

It is an amenable number.

67939404 is an abundant number, since it is smaller than the sum of its proper divisors (103366164).

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

67939404 is a wasteful number, since it uses less digits than its factorization.

67939404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514 (or 1512 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 67939404 is about 8242.5362601568. The cubic root of 67939404 is about 408.0442329975.

The spelling of 67939404 in words is "sixty-seven million, nine hundred thirty-nine thousand, four hundred four".