12438245 has 8 divisors (see below), whose sum is σ = 15440760. Its totient is φ = 9607360.

The previous prime is 12438227. The next prime is 12438247. The reversal of 12438245 is 54283421.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3806401 + 8631844 = 1951^2 + 2938^2 .

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

It is not a de Polignac number, because 12438245 - 2¹⁰ = 12437221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12438247) 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, 42746 + ... + 43035.

It is an arithmetic number, because the mean of its divisors is an integer number (1930095).

Almost surely, 2^12438245 is an apocalyptic number.

It is an amenable number.

12438245 is a deficient number, since it is larger than the sum of its proper divisors (3002515).

12438245 is an equidigital number, since it uses as much as digits as its factorization.

12438245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85815.

The product of its digits is 7680, while the sum is 29.

The square root of 12438245 is about 3526.7896166344. The cubic root of 12438245 is about 231.6966221350.

The spelling of 12438245 in words is "twelve million, four hundred thirty-eight thousand, two hundred forty-five".