12337820 has 24 divisors (see below), whose sum is σ = 28265328. Its totient is φ = 4486400.

The previous prime is 12337813. The next prime is 12337877. The reversal of 12337820 is 2873321.

It is a self number, because there is not a number n which added to its sum of digits gives 12337820.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27821 + ... + 28260.

It is an arithmetic number, because the mean of its divisors is an integer number (1177722).

Almost surely, 2^12337820 is an apocalyptic number.

12337820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12337820 is an abundant number, since it is smaller than the sum of its proper divisors (15927508).

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

12337820 is a wasteful number, since it uses less digits than its factorization.

12337820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56101 (or 56099 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 12337820 is about 3512.5233095312. The cubic root of 12337820 is about 231.0713721601.

The spelling of 12337820 in words is "twelve million, three hundred thirty-seven thousand, eight hundred twenty".