68090844 has 24 divisors (see below), whose sum is σ = 162574720. Its totient is φ = 22168944.

The previous prime is 68090843. The next prime is 68090863. The reversal of 68090844 is 44809086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68090843) 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, 65464 + ... + 66495.

Almost surely, 2^68090844 is an apocalyptic number.

It is an amenable number.

68090844 is an abundant number, since it is smaller than the sum of its proper divisors (94483876).

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

68090844 is a wasteful number, since it uses less digits than its factorization.

68090844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132009 (or 132007 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 68090844 is about 8251.7176393767. The cubic root of 68090844 is about 408.3471910147.

The spelling of 68090844 in words is "sixty-eight million, ninety thousand, eight hundred forty-four".