12402681 has 8 divisors (see below), whose sum is σ = 17256000. Its totient is φ = 7908912.

The previous prime is 12402679. The next prime is 12402713. The reversal of 12402681 is 18620421.

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

It is not a de Polignac number, because 12402681 - 2¹ = 12402679 is a prime.

It is a super-2 number, since 2×12402681² = 307652991975522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12402601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89806 + ... + 89943.

It is an arithmetic number, because the mean of its divisors is an integer number (2157000).

Almost surely, 2^12402681 is an apocalyptic number.

It is an amenable number.

12402681 is a deficient number, since it is larger than the sum of its proper divisors (4853319).

12402681 is a wasteful number, since it uses less digits than its factorization.

12402681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179775.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 12402681 is about 3521.7440281769. The cubic root of 12402681 is about 231.4755854689.

The spelling of 12402681 in words is "twelve million, four hundred two thousand, six hundred eighty-one".