68542222 has 16 divisors (see below), whose sum is σ = 118282752. Its totient is φ = 29179800.

The previous prime is 68542211. The next prime is 68542259. The reversal of 68542222 is 22224586.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14098 + ... + 18325.

It is an arithmetic number, because the mean of its divisors is an integer number (7392672).

Almost surely, 2^68542222 is an apocalyptic number.

68542222 is a deficient number, since it is larger than the sum of its proper divisors (49740530).

68542222 is a wasteful number, since it uses less digits than its factorization.

68542222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32583.

The product of its digits is 15360, while the sum is 31.

The square root of 68542222 is about 8279.0230099934. The cubic root of 68542222 is about 409.2475232479.

The spelling of 68542222 in words is "sixty-eight million, five hundred forty-two thousand, two hundred twenty-two".