68634190 has 8 divisors (see below), whose sum is σ = 123541560. Its totient is φ = 27453672.

The previous prime is 68634157. The next prime is 68634199. The reversal of 68634190 is 9143686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×68634190² = 9421304073912200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68634199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3431700 + ... + 3431719.

It is an arithmetic number, because the mean of its divisors is an integer number (15442695).

Almost surely, 2^68634190 is an apocalyptic number.

68634190 is a deficient number, since it is larger than the sum of its proper divisors (54907370).

68634190 is a wasteful number, since it uses less digits than its factorization.

68634190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6863426.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 68634190 is about 8284.5754266589. The cubic root of 68634190 is about 409.4304803311.

The spelling of 68634190 in words is "sixty-eight million, six hundred thirty-four thousand, one hundred ninety".