68204940 has 24 divisors (see below), whose sum is σ = 190974000. Its totient is φ = 18187968.

The previous prime is 68204933. The next prime is 68204957. The reversal of 68204940 is 4940286.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 568315 + ... + 568434.

It is an arithmetic number, because the mean of its divisors is an integer number (7957250).

Almost surely, 2^68204940 is an apocalyptic number.

68204940 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68204940 is an abundant number, since it is smaller than the sum of its proper divisors (122769060).

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

68204940 is a wasteful number, since it uses less digits than its factorization.

68204940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136761 (or 1136759 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 68204940 is about 8258.6282153878. The cubic root of 68204940 is about 408.5751452172.

The spelling of 68204940 in words is "sixty-eight million, two hundred four thousand, nine hundred forty".