128460222 has 32 divisors (see below), whose sum is σ = 311420160. Its totient is φ = 38927160.

The previous prime is 128460203. The next prime is 128460281. The reversal of 128460222 is 222064821.

It is a happy number.

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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107538 + ... + 108725.

It is an arithmetic number, because the mean of its divisors is an integer number (9731880).

Almost surely, 2^128460222 is an apocalyptic number.

128460222 is an abundant number, since it is smaller than the sum of its proper divisors (182959938).

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

128460222 is a wasteful number, since it uses less digits than its factorization.

128460222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216285 (or 216279 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 128460222 is about 11334.0293805866. The cubic root of 128460222 is about 504.5717010319.

The spelling of 128460222 in words is "one hundred twenty-eight million, four hundred sixty thousand, two hundred twenty-two".