12251408 has 20 divisors (see below), whose sum is σ = 25563468. Its totient is φ = 5654400.

The previous prime is 12251389. The next prime is 12251411. The reversal of 12251408 is 80415221.

It can be written as a sum of positive squares in 2 ways, for example, as 1149184 + 11102224 = 1072^2 + 3332^2 .

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, 29243 + ... + 29658.

Almost surely, 2^12251408 is an apocalyptic number.

It is an amenable number.

12251408 is an abundant number, since it is smaller than the sum of its proper divisors (13312060).

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

12251408 is a wasteful number, since it uses less digits than its factorization.

12251408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58922 (or 58916 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 12251408 is about 3500.2011370777. The cubic root of 12251408 is about 230.5306462296.

Adding to 12251408 its reverse (80415221), we get a palindrome (92666629).

The spelling of 12251408 in words is "twelve million, two hundred fifty-one thousand, four hundred eight".