128352222 has 32 divisors (see below), whose sum is σ = 292188960. Its totient is φ = 41739840.

The previous prime is 128352209. The next prime is 128352229. The reversal of 128352222 is 222253821.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128352229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26773 + ... + 31200.

It is an arithmetic number, because the mean of its divisors is an integer number (9130905).

Almost surely, 2^128352222 is an apocalyptic number.

128352222 is an abundant number, since it is smaller than the sum of its proper divisors (163836738).

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

128352222 is a wasteful number, since it uses less digits than its factorization.

128352222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58025 (or 58019 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 128352222 is about 11329.2639655010. The cubic root of 128352222 is about 504.4302590055.

The spelling of 128352222 in words is "one hundred twenty-eight million, three hundred fifty-two thousand, two hundred twenty-two".