128226570 has 48 divisors (see below), whose sum is σ = 311562720. Its totient is φ = 33774400.

The previous prime is 128226523. The next prime is 128226577. The reversal of 128226570 is 75622821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128226577) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 305821 + ... + 306239.

It is an arithmetic number, because the mean of its divisors is an integer number (6490890).

Almost surely, 2^128226570 is an apocalyptic number.

128226570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128226570 is an abundant number, since it is smaller than the sum of its proper divisors (183336150).

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

128226570 is a wasteful number, since it uses less digits than its factorization.

128226570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631 (or 530 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 128226570 is about 11323.7171458846. The cubic root of 128226570 is about 504.2655991753.

The spelling of 128226570 in words is "one hundred twenty-eight million, two hundred twenty-six thousand, five hundred seventy".