12438270 has 48 divisors (see below), whose sum is σ = 34830432. Its totient is φ = 3061440.

The previous prime is 12438269. The next prime is 12438281. The reversal of 12438270 is 7283421.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4146 + ... + 6485.

It is an arithmetic number, because the mean of its divisors is an integer number (725634).

Almost surely, 2^12438270 is an apocalyptic number.

12438270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12438270 is an abundant number, since it is smaller than the sum of its proper divisors (22392162).

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

12438270 is a wasteful number, since it uses less digits than its factorization.

12438270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10657 (or 10654 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 12438270 is about 3526.7931609325. The cubic root of 12438270 is about 231.6967773662.

The spelling of 12438270 in words is "twelve million, four hundred thirty-eight thousand, two hundred seventy".