12798432 has 48 divisors (see below), whose sum is σ = 37331280. Its totient is φ = 4265856.

The previous prime is 12798427. The next prime is 12798449. The reversal of 12798432 is 23489721.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

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, 6543 + ... + 8270.

It is an arithmetic number, because the mean of its divisors is an integer number (777735).

Almost surely, 2^12798432 is an apocalyptic number.

12798432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12798432 is an abundant number, since it is smaller than the sum of its proper divisors (24532848).

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

12798432 is a wasteful number, since it uses less digits than its factorization.

12798432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14832 (or 14818 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 12798432 is about 3577.4896226265. The cubic root of 12798432 is about 233.9118668757.

The spelling of 12798432 in words is "twelve million, seven hundred ninety-eight thousand, four hundred thirty-two".