12392481 has 16 divisors (see below), whose sum is σ = 16881984. Its totient is φ = 8084544.

The previous prime is 12392459. The next prime is 12392519. The reversal of 12392481 is 18429321.

It is not a de Polignac number, because 12392481 - 2¹³ = 12384289 is a prime.

It is a super-2 number, since 2×12392481² = 307147170670722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12392581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38935 + ... + 39251.

It is an arithmetic number, because the mean of its divisors is an integer number (1055124).

Almost surely, 2^12392481 is an apocalyptic number.

It is an amenable number.

12392481 is a deficient number, since it is larger than the sum of its proper divisors (4489503).

12392481 is a wasteful number, since it uses less digits than its factorization.

12392481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560.

The product of its digits is 3456, while the sum is 30.

The square root of 12392481 is about 3520.2955841804. The cubic root of 12392481 is about 231.4121126732.

The spelling of 12392481 in words is "twelve million, three hundred ninety-two thousand, four hundred eighty-one".