128226704 has 20 divisors (see below), whose sum is σ = 249745920. Its totient is φ = 63776160.

The previous prime is 128226673. The next prime is 128226737. The reversal of 128226704 is 407622821.

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, 17924 + ... + 24035.

It is an arithmetic number, because the mean of its divisors is an integer number (12487296).

Almost surely, 2^128226704 is an apocalyptic number.

It is an amenable number.

128226704 is a deficient number, since it is larger than the sum of its proper divisors (121519216).

128226704 is a wasteful number, since it uses less digits than its factorization.

128226704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42158 (or 42152 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 128226704 is about 11323.7230626680. The cubic root of 128226704 is about 504.2657748320.

The spelling of 128226704 in words is "one hundred twenty-eight million, two hundred twenty-six thousand, seven hundred four".