68820456 has 16 divisors (see below), whose sum is σ = 172051200. Its totient is φ = 22940144.

The previous prime is 68820431. The next prime is 68820461. The reversal of 68820456 is 65402886.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1433736 + ... + 1433783.

It is an arithmetic number, because the mean of its divisors is an integer number (10753200).

Almost surely, 2^68820456 is an apocalyptic number.

It is an amenable number.

68820456 is an abundant number, since it is smaller than the sum of its proper divisors (103230744).

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

68820456 is a wasteful number, since it uses less digits than its factorization.

68820456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2867528 (or 2867524 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 68820456 is about 8295.8095445833. The cubic root of 68820456 is about 409.8005295819.

The spelling of 68820456 in words is "sixty-eight million, eight hundred twenty thousand, four hundred fifty-six".