12861402 has 8 divisors (see below), whose sum is σ = 25722816. Its totient is φ = 4287132.

The previous prime is 12861397. The next prime is 12861403. The reversal of 12861402 is 20416821.

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

12861402 is an admirable number.

It is a super-2 number, since 2×12861402² = 330831322811208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12861403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1071778 + ... + 1071789.

It is an arithmetic number, because the mean of its divisors is an integer number (3215352).

Almost surely, 2^12861402 is an apocalyptic number.

12861402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12861402 is a wasteful number, since it uses less digits than its factorization.

12861402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143572.

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

The square root of 12861402 is about 3586.2796879217. The cubic root of 12861402 is about 234.2948653333.

The spelling of 12861402 in words is "twelve million, eight hundred sixty-one thousand, four hundred two".