12402449 has 8 divisors (see below), whose sum is σ = 13021440. Its totient is φ = 11797200.

The previous prime is 12402431. The next prime is 12402457. The reversal of 12402449 is 94420421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12402449 - 2²⁰ = 11353873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12402479) 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, 1562 + ... + 5219.

It is an arithmetic number, because the mean of its divisors is an integer number (1627680).

Almost surely, 2^12402449 is an apocalyptic number.

It is an amenable number.

12402449 is a deficient number, since it is larger than the sum of its proper divisors (618991).

12402449 is an equidigital number, since it uses as much as digits as its factorization.

12402449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6871.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 12402449 is about 3521.7110897971. The cubic root of 12402449 is about 231.4741421608.

The spelling of 12402449 in words is "twelve million, four hundred two thousand, four hundred forty-nine".