12342390 has 32 divisors (see below), whose sum is σ = 29798496. Its totient is φ = 3271680.

The previous prime is 12342389. The next prime is 12342409. The reversal of 12342390 is 9324321.

It is a self number, because there is not a number n which added to its sum of digits gives 12342390.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4294 + ... + 6566.

It is an arithmetic number, because the mean of its divisors is an integer number (931203).

Almost surely, 2^12342390 is an apocalyptic number.

12342390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12342390 is an abundant number, since it is smaller than the sum of its proper divisors (17456106).

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

12342390 is a wasteful number, since it uses less digits than its factorization.

12342390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 12342390 is about 3513.1737787932. The cubic root of 12342390 is about 231.0998986965.

The spelling of 12342390 in words is "twelve million, three hundred forty-two thousand, three hundred ninety".