68956220 has 24 divisors (see below), whose sum is σ = 145017600. Its totient is φ = 27542592.

The previous prime is 68956213. The next prime is 68956241. The reversal of 68956220 is 2265986.

It is a congruent 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, 14501 + ... + 18659.

It is an arithmetic number, because the mean of its divisors is an integer number (6042400).

Almost surely, 2^68956220 is an apocalyptic number.

It is an amenable number.

68956220 is an abundant number, since it is smaller than the sum of its proper divisors (76061380).

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

68956220 is a wasteful number, since it uses less digits than its factorization.

68956220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4997 (or 4995 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 68956220 is about 8303.9881984502. The cubic root of 68956220 is about 410.0698274883.

The spelling of 68956220 in words is "sixty-eight million, nine hundred fifty-six thousand, two hundred twenty".