128233902 has 8 divisors (see below), whose sum is σ = 256467816. Its totient is φ = 42744632.

The previous prime is 128233891. The next prime is 128233927. The reversal of 128233902 is 209332821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

128233902 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 128233902.

It is a congruent number.

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, 10686153 + ... + 10686164.

It is an arithmetic number, because the mean of its divisors is an integer number (32058477).

Almost surely, 2^128233902 is an apocalyptic number.

128233902 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

128233902 is a wasteful number, since it uses less digits than its factorization.

128233902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21372322.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 128233902 is about 11324.0408865387. The cubic root of 128233902 is about 504.2752103007.

The spelling of 128233902 in words is "one hundred twenty-eight million, two hundred thirty-three thousand, nine hundred two".