68260280 has 32 divisors (see below), whose sum is σ = 167549040. Its totient is φ = 24821760.

The previous prime is 68260277. The next prime is 68260333. The reversal of 68260280 is 8206286.

It is a happy number.

It is a congruent number.

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, 77129 + ... + 78008.

Almost surely, 2^68260280 is an apocalyptic number.

It is an amenable number.

68260280 is an abundant number, since it is smaller than the sum of its proper divisors (99288760).

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

68260280 is a wasteful number, since it uses less digits than its factorization.

68260280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155159 (or 155155 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 68260280 is about 8261.9779714061. The cubic root of 68260280 is about 408.6856183298.

The spelling of 68260280 in words is "sixty-eight million, two hundred sixty thousand, two hundred eighty".