68921260 has 24 divisors (see below), whose sum is σ = 148102416. Its totient is φ = 26927040.

The previous prime is 68921239. The next prime is 68921309. The reversal of 68921260 is 6212986.

It is a happy number.

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, 39211 + ... + 40930.

It is an arithmetic number, because the mean of its divisors is an integer number (6170934).

Almost surely, 2^68921260 is an apocalyptic number.

It is an amenable number.

68921260 is an abundant number, since it is smaller than the sum of its proper divisors (79181156).

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

68921260 is a wasteful number, since it uses less digits than its factorization.

68921260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80193 (or 80191 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 68921260 is about 8301.8829189528. The cubic root of 68921260 is about 410.0005155655. Note that the first 3 decimals are identical.

The spelling of 68921260 in words is "sixty-eight million, nine hundred twenty-one thousand, two hundred sixty".