12624445 has 8 divisors (see below), whose sum is σ = 15172920. Its totient is φ = 10083840.

The previous prime is 12624431. The next prime is 12624461. The reversal of 12624445 is 54442621.

It can be written as a sum of positive squares in 4 ways, for example, as 311364 + 12313081 = 558^2 + 3509^2 .

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

It is not a de Polignac number, because 12624445 - 2²³ = 4235837 is a prime.

It is a super-2 number, since 2×12624445² = 318753223116050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2485 + ... + 5605.

It is an arithmetic number, because the mean of its divisors is an integer number (1896615).

Almost surely, 2^12624445 is an apocalyptic number.

It is an amenable number.

12624445 is a deficient number, since it is larger than the sum of its proper divisors (2548475).

12624445 is an equidigital number, since it uses as much as digits as its factorization.

12624445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3935.

The product of its digits is 7680, while the sum is 28.

The square root of 12624445 is about 3553.0895007022. The cubic root of 12624445 is about 232.8470632738.

The spelling of 12624445 in words is "twelve million, six hundred twenty-four thousand, four hundred forty-five".