128472092 has 12 divisors (see below), whose sum is σ = 256944240. Its totient is φ = 55059456.

The previous prime is 128472067. The next prime is 128472133. The reversal of 128472092 is 290274821.

128472092 is an admirable number.

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, 2294117 + ... + 2294172.

It is an arithmetic number, because the mean of its divisors is an integer number (21412020).

Almost surely, 2^128472092 is an apocalyptic number.

It is an amenable number.

128472092 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.

128472092 is a wasteful number, since it uses less digits than its factorization.

128472092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4588300 (or 4588298 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 128472092 is about 11334.5530128012. The cubic root of 128472092 is about 504.5872417223.

The spelling of 128472092 in words is "one hundred twenty-eight million, four hundred seventy-two thousand, ninety-two".