12293888 has 18 divisors (see below), whose sum is σ = 24540264. Its totient is φ = 6146816.

The previous prime is 12293881. The next prime is 12293909. The reversal of 12293888 is 88839221.

It is a happy number.

It is a super-2 number, since 2×12293888² = 302279364313088, which contains 22 as substring.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12293881) 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, 23756 + ... + 24267.

It is an arithmetic number, because the mean of its divisors is an integer number (1363348).

Almost surely, 2^12293888 is an apocalyptic number.

It is an amenable number.

12293888 is a deficient number, since it is larger than the sum of its proper divisors (12246376).

12293888 is an frugal number, since it uses more digits than its factorization.

12293888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48039 (or 48025 counting only the distinct ones).

The product of its digits is 55296, while the sum is 41.

The square root of 12293888 is about 3506.2641087060. The cubic root of 12293888 is about 230.7967828528.

The spelling of 12293888 in words is "twelve million, two hundred ninety-three thousand, eight hundred eighty-eight".