12932390 has 8 divisors (see below), whose sum is σ = 23278320. Its totient is φ = 5172952.

The previous prime is 12932383. The next prime is 12932399. The reversal of 12932390 is 9323921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12932390² = 334493422224200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12932399) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 646610 + ... + 646629.

It is an arithmetic number, because the mean of its divisors is an integer number (2909790).

Almost surely, 2^12932390 is an apocalyptic number.

12932390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12932390 is a deficient number, since it is larger than the sum of its proper divisors (10345930).

12932390 is a wasteful number, since it uses less digits than its factorization.

12932390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293246.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 12932390 is about 3596.1632332251. The cubic root of 12932390 is about 234.7251350989.

The spelling of 12932390 in words is "twelve million, nine hundred thirty-two thousand, three hundred ninety".