12448690 has 16 divisors (see below), whose sum is σ = 22715928. Its totient is φ = 4910976.

The previous prime is 12448679. The next prime is 12448699. The reversal of 12448690 is 9684421.

It can be written as a sum of positive squares in 4 ways, for example, as 9616201 + 2832489 = 3101^2 + 1683^2 .

It is a super-2 number, since 2×12448690² = 309939765432200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12448699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7797 + ... + 9256.

It is the magic constant of a 292 × 292 magic square.

Almost surely, 2^12448690 is an apocalyptic number.

12448690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12448690 is a deficient number, since it is larger than the sum of its proper divisors (10267238).

12448690 is a wasteful number, since it uses less digits than its factorization.

12448690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17133.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 12448690 is about 3528.2701143762. The cubic root of 12448690 is about 231.7614596346.

The spelling of 12448690 in words is "twelve million, four hundred forty-eight thousand, six hundred ninety".