12621950 has 48 divisors (see below), whose sum is σ = 26154576. Its totient is φ = 4492800.

The previous prime is 12621949. The next prime is 12621967. The reversal of 12621950 is 5912621.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 28934 + ... + 29366.

It is an arithmetic number, because the mean of its divisors is an integer number (544887).

Almost surely, 2^12621950 is an apocalyptic number.

12621950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12621950 is an abundant number, since it is smaller than the sum of its proper divisors (13532626).

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

12621950 is a wasteful number, since it uses less digits than its factorization.

12621950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509 (or 504 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 12621950 is about 3552.7383804609. The cubic root of 12621950 is about 232.8317228846.

The spelling of 12621950 in words is "twelve million, six hundred twenty-one thousand, nine hundred fifty".