68188444 has 12 divisors (see below), whose sum is σ = 119949424. Its totient is φ = 33917184.

The previous prime is 68188427. The next prime is 68188451. The reversal of 68188444 is 44488186.

It is a super-2 number, since 2×68188444² = 9299327790282272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 68188444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43392 + ... + 44935.

Almost surely, 2^68188444 is an apocalyptic number.

It is an amenable number.

68188444 is a deficient number, since it is larger than the sum of its proper divisors (51760980).

68188444 is a wasteful number, since it uses less digits than its factorization.

68188444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88524 (or 88522 counting only the distinct ones).

The product of its digits is 196608, while the sum is 43.

The square root of 68188444 is about 8257.6294419161. The cubic root of 68188444 is about 408.5422033265.

The spelling of 68188444 in words is "sixty-eight million, one hundred eighty-eight thousand, four hundred forty-four".