12418738 has 8 divisors (see below), whose sum is σ = 19723932. Its totient is φ = 5844096.

The previous prime is 12418729. The next prime is 12418739. The reversal of 12418738 is 83781421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9504889 + 2913849 = 3083^2 + 1707^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 365257 = 12418738 / (1 + 2 + 4 + 1 + 8 + 7 + 3 + 8).

It is not an unprimeable number, because it can be changed into a prime (12418739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182595 + ... + 182662.

Almost surely, 2^12418738 is an apocalyptic number.

12418738 is a deficient number, since it is larger than the sum of its proper divisors (7305194).

12418738 is a wasteful number, since it uses less digits than its factorization.

12418738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365276.

The product of its digits is 10752, while the sum is 34.

The square root of 12418738 is about 3524.0229851691. The cubic root of 12418738 is about 231.5754348659.

The spelling of 12418738 in words is "twelve million, four hundred eighteen thousand, seven hundred thirty-eight".