12457382 has 16 divisors (see below), whose sum is σ = 21933600. Its totient is φ = 5194368.

The previous prime is 12457373. The next prime is 12457391. The reversal of 12457382 is 28375421.

It is an interprime number because it is at equal distance from previous prime (12457373) and next prime (12457391).

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 7 ways as a sum of consecutive naturals, for example, 11507 + ... + 12542.

It is an arithmetic number, because the mean of its divisors is an integer number (1370850).

Almost surely, 2^12457382 is an apocalyptic number.

12457382 is a deficient number, since it is larger than the sum of its proper divisors (9476218).

12457382 is a wasteful number, since it uses less digits than its factorization.

12457382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24095.

The product of its digits is 13440, while the sum is 32.

The square root of 12457382 is about 3529.5016645413. The cubic root of 12457382 is about 231.8153877170.

It can be divided in two parts, 12457 and 382, that multiplied together give a palindrome (4758574).

The spelling of 12457382 in words is "twelve million, four hundred fifty-seven thousand, three hundred eighty-two".