12343390 has 16 divisors (see below), whose sum is σ = 22595760. Its totient is φ = 4853440.

The previous prime is 12343349. The next prime is 12343391. The reversal of 12343390 is 9334321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12343391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9871 + ... + 11050.

It is an arithmetic number, because the mean of its divisors is an integer number (1412235).

Almost surely, 2^12343390 is an apocalyptic number.

12343390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12343390 is a deficient number, since it is larger than the sum of its proper divisors (10252370).

12343390 is a wasteful number, since it uses less digits than its factorization.

12343390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20987.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 12343390 is about 3513.3160973644. The cubic root of 12343390 is about 231.1061398880.

It can be divided in two parts, 1234 and 3390, that added together give a square (4624 = 68²).

The spelling of 12343390 in words is "twelve million, three hundred forty-three thousand, three hundred ninety".