12508992 has 140 divisors (see below), whose sum is σ = 39339520. Its totient is φ = 3919104.

The previous prime is 12508981. The next prime is 12508999. The reversal of 12508992 is 29980521.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12508999) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 98433 + ... + 98559.

Almost surely, 2^12508992 is an apocalyptic number.

12508992 is a gapful number since it is divisible by the number (12) 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 12508992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19669760).

12508992 is an abundant number, since it is smaller than the sum of its proper divisors (26830528).

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

12508992 is a wasteful number, since it uses less digits than its factorization.

12508992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 12508992 is about 3536.8053381548. The cubic root of 12508992 is about 232.1350778977.

The spelling of 12508992 in words is "twelve million, five hundred eight thousand, nine hundred ninety-two".