12420626 has 8 divisors (see below), whose sum is σ = 18652620. Its totient is φ = 6203088.

The previous prime is 12420619. The next prime is 12420649. The reversal of 12420626 is 62602421.

It can be written as a sum of positive squares in 2 ways, for example, as 11909401 + 511225 = 3451^2 + 715^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1121 + ... + 5108.

Almost surely, 2^12420626 is an apocalyptic number.

12420626 is a deficient number, since it is larger than the sum of its proper divisors (6231994).

12420626 is an equidigital number, since it uses as much as digits as its factorization.

12420626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7228.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 12420626 is about 3524.2908506535. The cubic root of 12420626 is about 231.5871696135.

The spelling of 12420626 in words is "twelve million, four hundred twenty thousand, six hundred twenty-six".