2252820 has 24 divisors (see below), whose sum is σ = 6308064. Its totient is φ = 600736.

The previous prime is 2252779. The next prime is 2252821. The reversal of 2252820 is 282522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2252821) 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, 18714 + ... + 18833.

It is an arithmetic number, because the mean of its divisors is an integer number (262836).

2^2252820 is an apocalyptic number.

2252820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2252820 is an abundant number, since it is smaller than the sum of its proper divisors (4055244).

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

2252820 is a wasteful number, since it uses less digits than its factorization.

2252820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37559 (or 37557 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2252820 is about 1500.9397056511. The cubic root of 2252820 is about 131.0917912312.

The spelling of 2252820 in words is "two million, two hundred fifty-two thousand, eight hundred twenty".