128894092 has 12 divisors (see below), whose sum is σ = 229820976. Its totient is φ = 63230960.

The previous prime is 128894083. The next prime is 128894099. The reversal of 128894092 is 290498821.

It is a super-2 number, since 2×128894092² = 33227373905008928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (128894099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303784 + ... + 304207.

It is an arithmetic number, because the mean of its divisors is an integer number (19151748).

Almost surely, 2^128894092 is an apocalyptic number.

It is an amenable number.

128894092 is a deficient number, since it is larger than the sum of its proper divisors (100926884).

128894092 is a wasteful number, since it uses less digits than its factorization.

128894092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608048 (or 608046 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 128894092 is about 11353.1533945420. The cubic root of 128894092 is about 505.1391205767.

The spelling of 128894092 in words is "one hundred twenty-eight million, eight hundred ninety-four thousand, ninety-two".