12493988 has 24 divisors (see below), whose sum is σ = 23798712. Its totient is φ = 5704704.

The previous prime is 12493973. The next prime is 12493993. The reversal of 12493988 is 88939421.

It is a happy number.

12493988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 369664 + 12124324 = 608^2 + 3482^2 .

It is a super-2 number, since 2×12493988² = 312199472288288, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3806 + ... + 6282.

It is an arithmetic number, because the mean of its divisors is an integer number (991613).

Almost surely, 2^12493988 is an apocalyptic number.

It is an amenable number.

12493988 is a deficient number, since it is larger than the sum of its proper divisors (11304724).

12493988 is a wasteful number, since it uses less digits than its factorization.

12493988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591 (or 2589 counting only the distinct ones).

The product of its digits is 124416, while the sum is 44.

The square root of 12493988 is about 3534.6835784834. The cubic root of 12493988 is about 232.0422287379.

The spelling of 12493988 in words is "twelve million, four hundred ninety-three thousand, nine hundred eighty-eight".