122890908 has 48 divisors (see below), whose sum is σ = 328333824. Its totient is φ = 35044800.

The previous prime is 122890903. The next prime is 122890919. The reversal of 122890908 is 809098221.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122890903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57841 + ... + 59927.

It is an arithmetic number, because the mean of its divisors is an integer number (6840288).

Almost surely, 2^122890908 is an apocalyptic number.

It is an amenable number.

122890908 is an abundant number, since it is smaller than the sum of its proper divisors (205442916).

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

122890908 is a wasteful number, since it uses less digits than its factorization.

122890908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802 (or 2800 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 122890908 is about 11085.6171682049. The cubic root of 122890908 is about 497.1719113212.

The spelling of 122890908 in words is "one hundred twenty-two million, eight hundred ninety thousand, nine hundred eight".