2128498272 has 72 divisors (see below), whose sum is σ = 6200583480. Its totient is φ = 692190720.

The previous prime is 2128498213. The next prime is 2128498327. The reversal of 2128498272 is 2728948212.

It is a happy number.

2128498272 is a `hidden beast` number, since 212 + 84 + 98 + 272 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78322 + ... + 101937.

It is an arithmetic number, because the mean of its divisors is an integer number (86119215).

Almost surely, 2^2128498272 is an apocalyptic number.

It is an amenable number.

2128498272 is an abundant number, since it is smaller than the sum of its proper divisors (4072085208).

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

2128498272 is a wasteful number, since it uses less digits than its factorization.

2128498272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180316 (or 180305 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 2128498272 is about 46135.6507703099. The cubic root of 2128498272 is about 1286.3459020653.

The spelling of 2128498272 in words is "two billion, one hundred twenty-eight million, four hundred ninety-eight thousand, two hundred seventy-two".