12326390 has 16 divisors (see below), whose sum is σ = 23152608. Its totient is φ = 4716096.

The previous prime is 12326371. The next prime is 12326393. The reversal of 12326390 is 9362321.

It is a Cunningham number, because it is equal to 231³-1.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12326393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26567 + ... + 27026.

It is an arithmetic number, because the mean of its divisors is an integer number (1447038).

Almost surely, 2^12326390 is an apocalyptic number.

12326390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12326390 is a deficient number, since it is larger than the sum of its proper divisors (10826218).

12326390 is a wasteful number, since it uses less digits than its factorization.

12326390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53623.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 12326390 is about 3510.8958970610. The cubic root of 12326390 is about 230.9999937532. Note that the first 5 decimals are identical.

The spelling of 12326390 in words is "twelve million, three hundred twenty-six thousand, three hundred ninety".