2120028 has 48 divisors (see below), whose sum is σ = 5268480. Its totient is φ = 662400.

The previous prime is 2120021. The next prime is 2120051. The reversal of 2120028 is 8200212.

It is a junction number, because it is equal to n+sod(n) for n = 2119989 and 2120016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120021) 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, 15183 + ... + 15321.

It is an arithmetic number, because the mean of its divisors is an integer number (109760).

2^2120028 is an apocalyptic number.

It is an amenable number.

2120028 is an abundant number, since it is smaller than the sum of its proper divisors (3148452).

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

2120028 is a wasteful number, since it uses less digits than its factorization.

2120028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2120028 is about 1456.0315930638. The cubic root of 2120028 is about 128.4637313299.

The spelling of 2120028 in words is "two million, one hundred twenty thousand, twenty-eight".