68687242 has 32 divisors (see below), whose sum is σ = 123681600. Its totient is φ = 28263168.

The previous prime is 68687239. The next prime is 68687273. The reversal of 68687242 is 24278686.

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, 4309 + ... + 12487.

It is an arithmetic number, because the mean of its divisors is an integer number (3865050).

Almost surely, 2^68687242 is an apocalyptic number.

68687242 is a deficient number, since it is larger than the sum of its proper divisors (54994358).

68687242 is a wasteful number, since it uses less digits than its factorization.

68687242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8230.

The product of its digits is 258048, while the sum is 43.

The square root of 68687242 is about 8287.7766620488. The cubic root of 68687242 is about 409.5359453171.

The spelling of 68687242 in words is "sixty-eight million, six hundred eighty-seven thousand, two hundred forty-two".