128894084 has 12 divisors (see below), whose sum is σ = 246070608. Its totient is φ = 58588200.

The previous prime is 128894083. The next prime is 128894099. The reversal of 128894084 is 480498821.

It is a happy number.

It is a super-2 number, since 2×128894084² = 33227369780398112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 2929411 = 128894084 / (1 + 2 + 8 + 8 + 9 + 4 + 0 + 8 + 4).

It is not an unprimeable number, because it can be changed into a prime (128894083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1464662 + ... + 1464749.

It is an arithmetic number, because the mean of its divisors is an integer number (20505884).

Almost surely, 2^128894084 is an apocalyptic number.

It is an amenable number.

128894084 is a deficient number, since it is larger than the sum of its proper divisors (117176524).

128894084 is a wasteful number, since it uses less digits than its factorization.

128894084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2929426 (or 2929424 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 44.

The square root of 128894084 is about 11353.1530422170. The cubic root of 128894084 is about 505.1391101259.

The spelling of 128894084 in words is "one hundred twenty-eight million, eight hundred ninety-four thousand, eighty-four".