12440659 has 12 divisors (see below), whose sum is σ = 15788088. Its totient is φ = 9693600.

The previous prime is 12440657. The next prime is 12440663. The reversal of 12440659 is 95604421.

It is not a de Polignac number, because 12440659 - 2¹ = 12440657 is a prime.

It is a super-3 number, since 3×12440659³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12440659.

It is not an unprimeable number, because it can be changed into a prime (12440657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11002 + ... + 12079.

It is an arithmetic number, because the mean of its divisors is an integer number (1315674).

Almost surely, 2^12440659 is an apocalyptic number.

12440659 is a deficient number, since it is larger than the sum of its proper divisors (3347429).

12440659 is a wasteful number, since it uses less digits than its factorization.

12440659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23106 (or 23099 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 12440659 is about 3527.1318376267. The cubic root of 12440659 is about 231.7116103016.

The spelling of 12440659 in words is "twelve million, four hundred forty thousand, six hundred fifty-nine".