68912438 has 16 divisors (see below), whose sum is σ = 119755680. Its totient is φ = 29128896.

The previous prime is 68912429. The next prime is 68912453. The reversal of 68912438 is 83421986.

It is a super-2 number, since 2×68912438² = 9497848222207688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68912395 and 68912404.

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, 32693 + ... + 34736.

It is an arithmetic number, because the mean of its divisors is an integer number (7484730).

Almost surely, 2^68912438 is an apocalyptic number.

68912438 is a deficient number, since it is larger than the sum of its proper divisors (50843242).

68912438 is a wasteful number, since it uses less digits than its factorization.

68912438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67511.

The product of its digits is 82944, while the sum is 41.

The square root of 68912438 is about 8301.3515767012. The cubic root of 68912438 is about 409.9830213076.

The spelling of 68912438 in words is "sixty-eight million, nine hundred twelve thousand, four hundred thirty-eight".