128492334 has 24 divisors (see below), whose sum is σ = 287381952. Its totient is φ = 41448960.

The previous prime is 128492333. The next prime is 128492339. The reversal of 128492334 is 433294821.

It is a super-3 number, since 3×128492334³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128492333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114579 + ... + 115694.

It is an arithmetic number, because the mean of its divisors is an integer number (11974248).

Almost surely, 2^128492334 is an apocalyptic number.

128492334 is an abundant number, since it is smaller than the sum of its proper divisors (158889618).

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

128492334 is a wasteful number, since it uses less digits than its factorization.

128492334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230312 (or 230309 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 128492334 is about 11335.4459109468. The cubic root of 128492334 is about 504.6137411703.

The spelling of 128492334 in words is "one hundred twenty-eight million, four hundred ninety-two thousand, three hundred thirty-four".