68140198 has 32 divisors (see below), whose sum is σ = 121723200. Its totient is φ = 27990144.

The previous prime is 68140181. The next prime is 68140207. The reversal of 68140198 is 89104186.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63208 + ... + 64276.

It is an arithmetic number, because the mean of its divisors is an integer number (3803850).

Almost surely, 2^68140198 is an apocalyptic number.

68140198 is a deficient number, since it is larger than the sum of its proper divisors (53583002).

68140198 is a wasteful number, since it uses less digits than its factorization.

68140198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 68140198 is about 8254.7076265607. The cubic root of 68140198 is about 408.4458273794.

The spelling of 68140198 in words is "sixty-eight million, one hundred forty thousand, one hundred ninety-eight".