12495820 has 12 divisors (see below), whose sum is σ = 26241264. Its totient is φ = 4998320.

The previous prime is 12495797. The next prime is 12495827. The reversal of 12495820 is 2859421.

It is a super-2 number, since 2×12495820² = 312291034944800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12495827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312376 + ... + 312415.

It is an arithmetic number, because the mean of its divisors is an integer number (2186772).

Almost surely, 2^12495820 is an apocalyptic number.

12495820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12495820 is an abundant number, since it is smaller than the sum of its proper divisors (13745444).

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

12495820 is a wasteful number, since it uses less digits than its factorization.

12495820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624800 (or 624798 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 12495820 is about 3534.9427152360. The cubic root of 12495820 is about 232.0535696748.

The spelling of 12495820 in words is "twelve million, four hundred ninety-five thousand, eight hundred twenty".