122278928 has 40 divisors (see below), whose sum is σ = 243817728. Its totient is φ = 59375232.

The previous prime is 122278907. The next prime is 122278951. The reversal of 122278928 is 829872221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153026 + ... + 153822.

Almost surely, 2^122278928 is an apocalyptic number.

It is an amenable number.

122278928 is a deficient number, since it is larger than the sum of its proper divisors (121538800).

122278928 is a wasteful number, since it uses less digits than its factorization.

122278928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071 (or 1065 counting only the distinct ones).

The product of its digits is 64512, while the sum is 41.

The square root of 122278928 is about 11057.9802857484. The cubic root of 122278928 is about 496.3452547639.

The spelling of 122278928 in words is "one hundred twenty-two million, two hundred seventy-eight thousand, nine hundred twenty-eight".