2131628528 has 20 divisors (see below), whose sum is σ = 4272446040. Its totient is φ = 1029061824.

The previous prime is 2131628509. The next prime is 2131628537. The reversal of 2131628528 is 8258261312.

It is a junction number, because it is equal to n+sod(n) for n = 2131628491 and 2131628500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2296550 + ... + 2297477.

It is an arithmetic number, because the mean of its divisors is an integer number (213622302).

Almost surely, 2^2131628528 is an apocalyptic number.

It is an amenable number.

2131628528 is an abundant number, since it is smaller than the sum of its proper divisors (2140817512).

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

2131628528 is a wasteful number, since it uses less digits than its factorization.

2131628528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4594064 (or 4594058 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 2131628528 is about 46169.5627876202. The cubic root of 2131628528 is about 1286.9761773713.

The spelling of 2131628528 in words is "two billion, one hundred thirty-one million, six hundred twenty-eight thousand, five hundred twenty-eight".