68057238 has 16 divisors (see below), whose sum is σ = 136609200. Its totient is φ = 22603296.

The previous prime is 68057233. The next prime is 68057257. The reversal of 68057238 is 83275086.

It is a junction number, because it is equal to n+sod(n) for n = 68057196 and 68057205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68057233) 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, 18813 + ... + 22136.

It is an arithmetic number, because the mean of its divisors is an integer number (8538075).

Almost surely, 2^68057238 is an apocalyptic number.

68057238 is an abundant number, since it is smaller than the sum of its proper divisors (68551962).

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

68057238 is a wasteful number, since it uses less digits than its factorization.

68057238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41231.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 68057238 is about 8249.6810847450. The cubic root of 68057238 is about 408.2800005128.

The spelling of 68057238 in words is "sixty-eight million, fifty-seven thousand, two hundred thirty-eight".