12398620 has 48 divisors (see below), whose sum is σ = 28717920. Its totient is φ = 4467456.

The previous prime is 12398611. The next prime is 12398651. The reversal of 12398620 is 2689321.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

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 15 ways as a sum of consecutive naturals, for example, 10626 + ... + 11734.

It is an arithmetic number, because the mean of its divisors is an integer number (598290).

Almost surely, 2^12398620 is an apocalyptic number.

12398620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12398620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14358960).

12398620 is an abundant number, since it is smaller than the sum of its proper divisors (16319300).

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

12398620 is a wasteful number, since it uses less digits than its factorization.

12398620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174 (or 1172 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 12398620 is about 3521.1674200469. The cubic root of 12398620 is about 231.4503187553.

The spelling of 12398620 in words is "twelve million, three hundred ninety-eight thousand, six hundred twenty".