12620018 has 8 divisors (see below), whose sum is σ = 20043612. Its totient is φ = 5938816.

The previous prime is 12620011. The next prime is 12620039. The reversal of 12620018 is 81002621.

It can be written as a sum of positive squares in 2 ways, for example, as 12581209 + 38809 = 3547^2 + 197^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12620011) 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, 185555 + ... + 185622.

Almost surely, 2^12620018 is an apocalyptic number.

12620018 is a deficient number, since it is larger than the sum of its proper divisors (7423594).

12620018 is a wasteful number, since it uses less digits than its factorization.

12620018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371196.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 12620018 is about 3552.4664671183. The cubic root of 12620018 is about 232.8198426854.

Adding to 12620018 its reverse (81002621), we get a palindrome (93622639).

The spelling of 12620018 in words is "twelve million, six hundred twenty thousand, eighteen".