190222128 has 40 divisors (see below), whose sum is σ = 546009200. Its totient is φ = 63407232.

The previous prime is 190222127. The next prime is 190222133. The reversal of 190222128 is 821222091.

190222128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (190222127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219733 + ... + 220596.

It is an arithmetic number, because the mean of its divisors is an integer number (13650230).

Almost surely, 2^190222128 is an apocalyptic number.

190222128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

190222128 is an abundant number, since it is smaller than the sum of its proper divisors (355787072).

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

190222128 is a wasteful number, since it uses less digits than its factorization.

190222128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440346 (or 440334 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 190222128 is about 13792.1038279154. The cubic root of 190222128 is about 575.1136541563.

The spelling of 190222128 in words is "one hundred ninety million, two hundred twenty-two thousand, one hundred twenty-eight".