12281930 has 8 divisors (see below), whose sum is σ = 22107492. Its totient is φ = 4912768.

The previous prime is 12281909. The next prime is 12281947. The reversal of 12281930 is 3918221.

12281930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11202409 + 1079521 = 3347^2 + 1039^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 12281930.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 614087 + ... + 614106.

Almost surely, 2^12281930 is an apocalyptic number.

12281930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12281930 is a deficient number, since it is larger than the sum of its proper divisors (9825562).

12281930 is a wasteful number, since it uses less digits than its factorization.

12281930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228200.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 12281930 is about 3504.5584600631. The cubic root of 12281930 is about 230.7219282249.

The spelling of 12281930 in words is "twelve million, two hundred eighty-one thousand, nine hundred thirty".