68302220 has 24 divisors (see below), whose sum is σ = 163925664. Its totient is φ = 23417856.

The previous prime is 68302219. The next prime is 68302253. The reversal of 68302220 is 2220386.

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, 243797 + ... + 244076.

It is an arithmetic number, because the mean of its divisors is an integer number (6830236).

Almost surely, 2^68302220 is an apocalyptic number.

It is an amenable number.

68302220 is an abundant number, since it is smaller than the sum of its proper divisors (95623444).

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

68302220 is a wasteful number, since it uses less digits than its factorization.

68302220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487889 (or 487887 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 68302220 is about 8264.5157147893. The cubic root of 68302220 is about 408.7693017722.

The spelling of 68302220 in words is "sixty-eight million, three hundred two thousand, two hundred twenty".