12942472 has 8 divisors (see below), whose sum is σ = 24267150. Its totient is φ = 6471232.

The previous prime is 12942467. The next prime is 12942473. The reversal of 12942472 is 27424921.

It can be written as a sum of positive squares in only one way, i.e., 12432676 + 509796 = 3526^2 + 714^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (12942473) by changing a digit.

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 as a sum of consecutive naturals, namely, 808897 + ... + 808912.

Almost surely, 2^12942472 is an apocalyptic number.

It is an amenable number.

12942472 is a deficient number, since it is larger than the sum of its proper divisors (11324678).

12942472 is a wasteful number, since it uses less digits than its factorization.

12942472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617815 (or 1617811 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 12942472 is about 3597.5647318707. The cubic root of 12942472 is about 234.7861159413.

The spelling of 12942472 in words is "twelve million, nine hundred forty-two thousand, four hundred seventy-two".