12862438 has 16 divisors (see below), whose sum is σ = 20929104. Its totient is φ = 5904640.

The previous prime is 12862393. The next prime is 12862439. The reversal of 12862438 is 83426821.

It is a super-2 number, since 2×12862438² = 330884622607688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12862439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3220 + ... + 6007.

It is an arithmetic number, because the mean of its divisors is an integer number (1308069).

Almost surely, 2^12862438 is an apocalyptic number.

12862438 is a deficient number, since it is larger than the sum of its proper divisors (8066666).

12862438 is a wasteful number, since it uses less digits than its factorization.

12862438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9287.

The product of its digits is 18432, while the sum is 34.

The square root of 12862438 is about 3586.4241243891. The cubic root of 12862438 is about 234.3011560670.

The spelling of 12862438 in words is "twelve million, eight hundred sixty-two thousand, four hundred thirty-eight".