68415844 has 24 divisors (see below), whose sum is σ = 138877760. Its totient is φ = 28882656.

The previous prime is 68415833. The next prime is 68415857. The reversal of 68415844 is 44851486.

It is a junction number, because it is equal to n+sod(n) for n = 68415797 and 68415806.

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, 16359 + ... + 20110.

Almost surely, 2^68415844 is an apocalyptic number.

It is an amenable number.

68415844 is an abundant number, since it is smaller than the sum of its proper divisors (70461916).

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

68415844 is a wasteful number, since it uses less digits than its factorization.

68415844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36547 (or 36545 counting only the distinct ones).

The product of its digits is 122880, while the sum is 40.

The square root of 68415844 is about 8271.3870662665. The cubic root of 68415844 is about 408.9958452720.

The spelling of 68415844 in words is "sixty-eight million, four hundred fifteen thousand, eight hundred forty-four".