128233398 has 8 divisors (see below), whose sum is σ = 256466808. Its totient is φ = 42744464.

The previous prime is 128233393. The next prime is 128233403. The reversal of 128233398 is 893332821.

It is an interprime number because it is at equal distance from previous prime (128233393) and next prime (128233403).

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

128233398 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128233393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10686111 + ... + 10686122.

It is an arithmetic number, because the mean of its divisors is an integer number (32058351).

Almost surely, 2^128233398 is an apocalyptic number.

128233398 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.

128233398 is a wasteful number, since it uses less digits than its factorization.

128233398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21372238.

The product of its digits is 62208, while the sum is 39.

The square root of 128233398 is about 11324.0186329765. The cubic root of 128233398 is about 504.2745496458.

The spelling of 128233398 in words is "one hundred twenty-eight million, two hundred thirty-three thousand, three hundred ninety-eight".