68130438 has 16 divisors (see below), whose sum is σ = 139584816. Its totient is φ = 22156160.

The previous prime is 68130421. The next prime is 68130451. The reversal of 68130438 is 83403186.

It is a junction number, because it is equal to n+sod(n) for n = 68130399 and 68130408.

It is a congruent number.

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, 138231 + ... + 138722.

It is an arithmetic number, because the mean of its divisors is an integer number (8724051).

Almost surely, 2^68130438 is an apocalyptic number.

68130438 is an abundant number, since it is smaller than the sum of its proper divisors (71454378).

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

68130438 is a wasteful number, since it uses less digits than its factorization.

68130438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276999.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 68130438 is about 8254.1164275772. The cubic root of 68130438 is about 408.4263253246.

The spelling of 68130438 in words is "sixty-eight million, one hundred thirty thousand, four hundred thirty-eight".