68933190 has 32 divisors (see below), whose sum is σ = 167774976. Its totient is φ = 18122720.

The previous prime is 68933173. The next prime is 68933191. The reversal of 68933190 is 9133986.

It is a super-2 number, since 2×68933190² = 9503569367152200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68933191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14052 + ... + 18311.

It is an arithmetic number, because the mean of its divisors is an integer number (5242968).

Almost surely, 2^68933190 is an apocalyptic number.

68933190 is an abundant number, since it is smaller than the sum of its proper divisors (98841786).

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

68933190 is a wasteful number, since it uses less digits than its factorization.

68933190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32444.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 68933190 is about 8302.6013995615. The cubic root of 68933190 is about 410.0241706948.

The spelling of 68933190 in words is "sixty-eight million, nine hundred thirty-three thousand, one hundred ninety".