122880856 has 16 divisors (see below), whose sum is σ = 263316240. Its totient is φ = 52663200.

The previous prime is 122880841. The next prime is 122880883. The reversal of 122880856 is 658088221.

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 3 ways as a sum of consecutive naturals, for example, 1097095 + ... + 1097206.

It is an arithmetic number, because the mean of its divisors is an integer number (16457265).

Almost surely, 2^122880856 is an apocalyptic number.

It is an amenable number.

122880856 is an abundant number, since it is smaller than the sum of its proper divisors (140435384).

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

122880856 is a wasteful number, since it uses less digits than its factorization.

122880856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2194314 (or 2194310 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 40.

The square root of 122880856 is about 11085.1637786728. The cubic root of 122880856 is about 497.1583553731.

The spelling of 122880856 in words is "one hundred twenty-two million, eight hundred eighty thousand, eight hundred fifty-six".