12489624 has 48 divisors (see below), whose sum is σ = 38659920. Its totient is φ = 3568320.

The previous prime is 12489619. The next prime is 12489629. The reversal of 12489624 is 42698421.

12489624 is a `hidden beast` number, since 1 + 24 + 8 + 9 + 624 = 666.

It is an interprime number because it is at equal distance from previous prime (12489619) and next prime (12489629).

It is a super-2 number, since 2×12489624² = 311981415322752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12489629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11887 + ... + 12894.

It is an arithmetic number, because the mean of its divisors is an integer number (805415).

Almost surely, 2^12489624 is an apocalyptic number.

12489624 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12489624 is an abundant number, since it is smaller than the sum of its proper divisors (26170296).

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

12489624 is a wasteful number, since it uses less digits than its factorization.

12489624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24800 (or 24793 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 12489624 is about 3534.0662133016. The cubic root of 12489624 is about 232.0152090703.

The spelling of 12489624 in words is "twelve million, four hundred eighty-nine thousand, six hundred twenty-four".