12518390 has 16 divisors (see below), whose sum is σ = 22712832. Its totient is φ = 4967424.

The previous prime is 12518383. The next prime is 12518399. The reversal of 12518390 is 9381521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12518399) 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, 3659 + ... + 6198.

It is an arithmetic number, because the mean of its divisors is an integer number (1419552).

Almost surely, 2^12518390 is an apocalyptic number.

12518390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12518390 is a deficient number, since it is larger than the sum of its proper divisors (10194442).

12518390 is a wasteful number, since it uses less digits than its factorization.

12518390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9991.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 12518390 is about 3538.1336888252. The cubic root of 12518390 is about 232.1931976711.

The spelling of 12518390 in words is "twelve million, five hundred eighteen thousand, three hundred ninety".