68720260 has 24 divisors (see below), whose sum is σ = 164928960. Its totient is φ = 23561184.

The previous prime is 68720257. The next prime is 68720263. The reversal of 68720260 is 6202786.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68720257) and next prime (68720263).

It is not an unprimeable number, because it can be changed into a prime (68720263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245290 + ... + 245569.

It is an arithmetic number, because the mean of its divisors is an integer number (6872040).

Almost surely, 2^68720260 is an apocalyptic number.

It is an amenable number.

68720260 is an abundant number, since it is smaller than the sum of its proper divisors (96208700).

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

68720260 is a wasteful number, since it uses less digits than its factorization.

68720260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490875 (or 490873 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 68720260 is about 8289.7683924221. The cubic root of 68720260 is about 409.6015561998.

The spelling of 68720260 in words is "sixty-eight million, seven hundred twenty thousand, two hundred sixty".