128980472 has 8 divisors (see below), whose sum is σ = 241838400. Its totient is φ = 64490232.

The previous prime is 128980469. The next prime is 128980477. The reversal of 128980472 is 274089821.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128980477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8061272 + ... + 8061287.

It is an arithmetic number, because the mean of its divisors is an integer number (30229800).

Almost surely, 2^128980472 is an apocalyptic number.

It is an amenable number.

128980472 is a deficient number, since it is larger than the sum of its proper divisors (112857928).

128980472 is a wasteful number, since it uses less digits than its factorization.

128980472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16122565 (or 16122561 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 128980472 is about 11356.9569867989. The cubic root of 128980472 is about 505.2519371610.

The spelling of 128980472 in words is "one hundred twenty-eight million, nine hundred eighty thousand, four hundred seventy-two".