428162226 has 16 divisors (see below), whose sum is σ = 901394400. Its totient is φ = 135209088.

The previous prime is 428162219. The next prime is 428162237. The reversal of 428162226 is 622261824.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1877791 + ... + 1878018.

It is an arithmetic number, because the mean of its divisors is an integer number (56337150).

Almost surely, 2^428162226 is an apocalyptic number.

428162226 is an abundant number, since it is smaller than the sum of its proper divisors (473232174).

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

428162226 is a wasteful number, since it uses less digits than its factorization.

428162226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755833.

The product of its digits is 18432, while the sum is 33.

The square root of 428162226 is about 20692.0812389668. The cubic root of 428162226 is about 753.7074068707.

The spelling of 428162226 in words is "four hundred twenty-eight million, one hundred sixty-two thousand, two hundred twenty-six".