68209428 has 48 divisors (see below), whose sum is σ = 184988160. Its totient is φ = 19156704.

The previous prime is 68209343. The next prime is 68209433. The reversal of 68209428 is 82490286.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1926 + ... + 11837.

It is an arithmetic number, because the mean of its divisors is an integer number (3853920).

Almost surely, 2^68209428 is an apocalyptic number.

It is an amenable number.

68209428 is an abundant number, since it is smaller than the sum of its proper divisors (116778732).

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

68209428 is a wasteful number, since it uses less digits than its factorization.

68209428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13836 (or 13834 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 68209428 is about 8258.8999267457. The cubic root of 68209428 is about 408.5841066650.

The spelling of 68209428 in words is "sixty-eight million, two hundred nine thousand, four hundred twenty-eight".