772225228 has 12 divisors (see below), whose sum is σ = 1380147552. Its totient is φ = 377897360.

The previous prime is 772225193. The next prime is 772225273. The reversal of 772225228 is 822522277.

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, 2053603 + ... + 2053978.

It is an arithmetic number, because the mean of its divisors is an integer number (115012296).

Almost surely, 2^772225228 is an apocalyptic number.

It is an amenable number.

772225228 is a deficient number, since it is larger than the sum of its proper divisors (607922324).

772225228 is a wasteful number, since it uses less digits than its factorization.

772225228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4107632 (or 4107630 counting only the distinct ones).

The product of its digits is 62720, while the sum is 37.

The square root of 772225228 is about 27788.9407498739. The cubic root of 772225228 is about 917.4477259380.

The spelling of 772225228 in words is "seven hundred seventy-two million, two hundred twenty-five thousand, two hundred twenty-eight".