2120828 has 24 divisors (see below), whose sum is σ = 3931200. Its totient is φ = 999488.

The previous prime is 2120827. The next prime is 2120843. The reversal of 2120828 is 8280212.

It is a super-2 number, since 2×2120828² = 8995822811168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5258 + ... + 5646.

It is an arithmetic number, because the mean of its divisors is an integer number (163800).

2^2120828 is an apocalyptic number.

It is an amenable number.

2120828 is a deficient number, since it is larger than the sum of its proper divisors (1810372).

2120828 is a wasteful number, since it uses less digits than its factorization.

2120828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 2120828 is about 1456.3062864659. The cubic root of 2120828 is about 128.4798880443.

The spelling of 2120828 in words is "two million, one hundred twenty thousand, eight hundred twenty-eight".