213159828 has 48 divisors (see below), whose sum is σ = 574308224. Its totient is φ = 60272640.

The previous prime is 213159811. The next prime is 213159829. The reversal of 213159828 is 828951312.

213159828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×213159828² = 90874224545979168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213159829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4933 + ... + 21228.

Almost surely, 2^213159828 is an apocalyptic number.

213159828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

213159828 is an abundant number, since it is smaller than the sum of its proper divisors (361148396).

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

213159828 is a wasteful number, since it uses less digits than its factorization.

213159828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26272 (or 26270 counting only the distinct ones).

The product of its digits is 34560, while the sum is 39.

The square root of 213159828 is about 14599.9941095879. The cubic root of 213159828 is about 597.3585998504.

The spelling of 213159828 in words is "two hundred thirteen million, one hundred fifty-nine thousand, eight hundred twenty-eight".