12252820 has 24 divisors (see below), whose sum is σ = 25804800. Its totient is φ = 4887072.

The previous prime is 12252811. The next prime is 12252827. The reversal of 12252820 is 2825221.

It is a junction number, because it is equal to n+sod(n) for n = 12252791 and 12252800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12252827) 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, 8941 + ... + 10219.

It is an arithmetic number, because the mean of its divisors is an integer number (1075200).

Almost surely, 2^12252820 is an apocalyptic number.

12252820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12252820 is an abundant number, since it is smaller than the sum of its proper divisors (13551980).

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

12252820 is a wasteful number, since it uses less digits than its factorization.

12252820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767 (or 1765 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 12252820 is about 3500.4028339607. The cubic root of 12252820 is about 230.5395022666.

The spelling of 12252820 in words is "twelve million, two hundred fifty-two thousand, eight hundred twenty".