12620418 has 8 divisors (see below), whose sum is σ = 25240848. Its totient is φ = 4206804.

The previous prime is 12620417. The next prime is 12620437. The reversal of 12620418 is 81402621.

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

12620418 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (12620417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1051696 + ... + 1051707.

It is an arithmetic number, because the mean of its divisors is an integer number (3155106).

Almost surely, 2^12620418 is an apocalyptic number.

12620418 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12620418 is a wasteful number, since it uses less digits than its factorization.

12620418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103408.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 12620418 is about 3552.5227655850. The cubic root of 12620418 is about 232.8223024535.

The spelling of 12620418 in words is "twelve million, six hundred twenty thousand, four hundred eighteen".