2128199652 has 36 divisors (see below), whose sum is σ = 5662755280. Its totient is φ = 672062832.

The previous prime is 2128199651. The next prime is 2128199657. The reversal of 2128199652 is 2569918212.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2128199652² = 9058467517545842208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2128199598 and 2128199607.

It is not an unprimeable number, because it can be changed into a prime (2128199651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1555018 + ... + 1556385.

Almost surely, 2^2128199652 is an apocalyptic number.

It is an amenable number.

2128199652 is an abundant number, since it is smaller than the sum of its proper divisors (3534555628).

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

2128199652 is a wasteful number, since it uses less digits than its factorization.

2128199652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3111432 (or 3111427 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 2128199652 is about 46132.4143309235. The cubic root of 2128199652 is about 1286.2857428153.

The spelling of 2128199652 in words is "two billion, one hundred twenty-eight million, one hundred ninety-nine thousand, six hundred fifty-two".