68855020 has 24 divisors (see below), whose sum is σ = 155718864. Its totient is φ = 25423296.

The previous prime is 68855011. The next prime is 68855021. The reversal of 68855020 is 2055886.

It is not an unprimeable number, because it can be changed into a prime (68855021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132154 + ... + 132673.

It is an arithmetic number, because the mean of its divisors is an integer number (6488286).

Almost surely, 2^68855020 is an apocalyptic number.

It is an amenable number.

68855020 is an abundant number, since it is smaller than the sum of its proper divisors (86863844).

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

68855020 is a wasteful number, since it uses less digits than its factorization.

68855020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264849 (or 264847 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 68855020 is about 8297.8925035216. The cubic root of 68855020 is about 409.8691234066.

The spelling of 68855020 in words is "sixty-eight million, eight hundred fifty-five thousand, twenty".