68042956 has 12 divisors (see below), whose sum is σ = 119271880. Its totient is φ = 33965280.

The previous prime is 68042941. The next prime is 68042977. The reversal of 68042956 is 65924086.

It is a happy number.

It is a super-2 number, since 2×68042956² = 9259687722435872, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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, 11265 + ... + 16216.

Almost surely, 2^68042956 is an apocalyptic number.

It is an amenable number.

68042956 is a deficient number, since it is larger than the sum of its proper divisors (51228924).

68042956 is a wasteful number, since it uses less digits than its factorization.

68042956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28104 (or 28102 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 68042956 is about 8248.8154301087. The cubic root of 68042956 is about 408.2514389516.

The spelling of 68042956 in words is "sixty-eight million, forty-two thousand, nine hundred fifty-six".