12440685 has 16 divisors (see below), whose sum is σ = 21076416. Its totient is φ = 6244608.

The previous prime is 12440663. The next prime is 12440693. The reversal of 12440685 is 58604421.

It is not a de Polignac number, because 12440685 - 2⁷ = 12440557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24139 + ... + 24648.

It is an arithmetic number, because the mean of its divisors is an integer number (1317276).

Almost surely, 2^12440685 is an apocalyptic number.

12440685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12440685 is a deficient number, since it is larger than the sum of its proper divisors (8635731).

12440685 is a wasteful number, since it uses less digits than its factorization.

12440685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48812.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 12440685 is about 3527.1355233390. The cubic root of 12440685 is about 231.7117717212.

The spelling of 12440685 in words is "twelve million, four hundred forty thousand, six hundred eighty-five".