12393390 has 16 divisors (see below), whose sum is σ = 29744208. Its totient is φ = 3304896.

The previous prime is 12393371. The next prime is 12393401. The reversal of 12393390 is 9339321.

It is a super-2 number, since 2×12393390² = 307192231384200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 413113 = 12393390 / (1 + 2 + 3 + 9 + 3 + 3 + 9 + 0).

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, 206527 + ... + 206586.

It is an arithmetic number, because the mean of its divisors is an integer number (1859013).

Almost surely, 2^12393390 is an apocalyptic number.

12393390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12393390 is an abundant number, since it is smaller than the sum of its proper divisors (17350818).

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

12393390 is a wasteful number, since it uses less digits than its factorization.

12393390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413123.

The product of its (nonzero) digits is 4374, while the sum is 30.

The square root of 12393390 is about 3520.4246902895. The cubic root of 12393390 is about 231.4177706327.

The spelling of 12393390 in words is "twelve million, three hundred ninety-three thousand, three hundred ninety".