68457828 has 12 divisors (see below), whose sum is σ = 159734960. Its totient is φ = 22819272.

The previous prime is 68457769. The next prime is 68457833. The reversal of 68457828 is 82875486.

It is a tau number, because it is divible by the number of its divisors (12).

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, 2852398 + ... + 2852421.

Almost surely, 2^68457828 is an apocalyptic number.

It is an amenable number.

68457828 is an abundant number, since it is smaller than the sum of its proper divisors (91277132).

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

68457828 is a wasteful number, since it uses less digits than its factorization.

68457828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5704826 (or 5704824 counting only the distinct ones).

The product of its digits is 860160, while the sum is 48.

The square root of 68457828 is about 8273.9245826875. The cubic root of 68457828 is about 409.0794894949.

The spelling of 68457828 in words is "sixty-eight million, four hundred fifty-seven thousand, eight hundred twenty-eight".