68239770 has 32 divisors (see below), whose sum is σ = 167263488. Its totient is φ = 17809728.

The previous prime is 68239763. The next prime is 68239789. The reversal of 68239770 is 7793286.

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, 22789 + ... + 25608.

It is an arithmetic number, because the mean of its divisors is an integer number (5226984).

Almost surely, 2^68239770 is an apocalyptic number.

68239770 is an abundant number, since it is smaller than the sum of its proper divisors (99023718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68239770 is a wasteful number, since it uses less digits than its factorization.

68239770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48454.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 68239770 is about 8260.7366499605. The cubic root of 68239770 is about 408.6446819723.

The spelling of 68239770 in words is "sixty-eight million, two hundred thirty-nine thousand, seven hundred seventy".