12620416 has 16 divisors (see below), whose sum is σ = 25142490. Its totient is φ = 6310144.

The previous prime is 12620407. The next prime is 12620417. The reversal of 12620416 is 61402621.

It can be written as a sum of positive squares in only one way, i.e., 6350400 + 6270016 = 2520^2 + 2504^2 .

It is a tau number, because it is divible by the number of its divisors (16).

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49171 + ... + 49426.

Almost surely, 2^12620416 is an apocalyptic number.

12620416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12620416 is a deficient number, since it is larger than the sum of its proper divisors (12522074).

12620416 is an frugal number, since it uses more digits than its factorization.

12620416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98611 (or 98599 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12620416 is about 3552.5224840949. The cubic root of 12620416 is about 232.8222901548.

The spelling of 12620416 in words is "twelve million, six hundred twenty thousand, four hundred sixteen".