68940022 has 4 divisors (see below), whose sum is σ = 103410036. Its totient is φ = 34470010.

The previous prime is 68940019. The next prime is 68940041. The reversal of 68940022 is 22004986.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17235004 + ... + 17235007.

It is an arithmetic number, because the mean of its divisors is an integer number (25852509).

Almost surely, 2^68940022 is an apocalyptic number.

68940022 is a deficient number, since it is larger than the sum of its proper divisors (34470014).

68940022 is a wasteful number, since it uses less digits than its factorization.

68940022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34470013.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 68940022 is about 8303.0128266792. The cubic root of 68940022 is about 410.0377161417.

The spelling of 68940022 in words is "sixty-eight million, nine hundred forty thousand, twenty-two".