12440753 has 16 divisors (see below), whose sum is σ = 14542416. Its totient is φ = 10536960.

The previous prime is 12440741. The next prime is 12440809. The reversal of 12440753 is 35704421.

It can be written as a sum of positive squares in 8 ways, for example, as 1024 + 12439729 = 32^2 + 3527^2 .

It is a cyclic number.

It is not a de Polignac number, because 12440753 - 2¹⁸ = 12178609 is a prime.

It is a super-3 number, since 3×12440753³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12440053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8375 + ... + 9747.

It is an arithmetic number, because the mean of its divisors is an integer number (908901).

Almost surely, 2^12440753 is an apocalyptic number.

12440753 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12440753 is a deficient number, since it is larger than the sum of its proper divisors (2101663).

12440753 is a wasteful number, since it uses less digits than its factorization.

12440753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 12440753 is about 3527.1451628761. The cubic root of 12440753 is about 231.7121938944.

The spelling of 12440753 in words is "twelve million, four hundred forty thousand, seven hundred fifty-three".