70880256 has 66 divisors (see below), whose sum is σ = 204691812. Its totient is φ = 23623680.

The previous prime is 70880237. The next prime is 70880261. The reversal of 70880256 is 65208807.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 70880256.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5371 + ... + 13061.

Almost surely, 2^70880256 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 70880256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102345906).

70880256 is an abundant number, since it is smaller than the sum of its proper divisors (133811556).

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

70880256 is a wasteful number, since it uses less digits than its factorization.

70880256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7717 (or 7696 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 70880256 is about 8419.0412755848. The cubic root of 70880256 is about 413.8488561200.

The spelling of 70880256 in words is "seventy million, eight hundred eighty thousand, two hundred fifty-six".