68958320 has 20 divisors (see below), whose sum is σ = 160328280. Its totient is φ = 27583296.

The previous prime is 68958313. The next prime is 68958349. The reversal of 68958320 is 2385986.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430910 + ... + 431069.

It is an arithmetic number, because the mean of its divisors is an integer number (8016414).

Almost surely, 2^68958320 is an apocalyptic number.

It is an amenable number.

68958320 is an abundant number, since it is smaller than the sum of its proper divisors (91369960).

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

68958320 is a wasteful number, since it uses less digits than its factorization.

68958320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861992 (or 861986 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 68958320 is about 8304.1146427539. The cubic root of 68958320 is about 410.0739902159.

The spelling of 68958320 in words is "sixty-eight million, nine hundred fifty-eight thousand, three hundred twenty".