68607280 has 80 divisors (see below), whose sum is σ = 184256064. Its totient is φ = 23270400.

The previous prime is 68607269. The next prime is 68607293. The reversal of 68607280 is 8270686.

It is a tau number, because it is divible by the number of its divisors (80).

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, 55954 + ... + 57166.

Almost surely, 2^68607280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68607280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92128032).

68607280 is an abundant number, since it is smaller than the sum of its proper divisors (115648784).

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

68607280 is a wasteful number, since it uses less digits than its factorization.

68607280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334 (or 1328 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 68607280 is about 8282.9511648929. The cubic root of 68607280 is about 409.3769636873.

The spelling of 68607280 in words is "sixty-eight million, six hundred seven thousand, two hundred eighty".