12870942 has 48 divisors (see below), whose sum is σ = 31213440. Its totient is φ = 3456432.

The previous prime is 12870941. The next prime is 12870943. The reversal of 12870942 is 24907821.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12870941) and next prime (12870943).

It is a super-2 number, since 2×12870942² = 331322295934728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12870941) 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 in 23 ways as a sum of consecutive naturals, for example, 101283 + ... + 101409.

It is an arithmetic number, because the mean of its divisors is an integer number (650280).

Almost surely, 2^12870942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12870942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15606720).

12870942 is an abundant number, since it is smaller than the sum of its proper divisors (18342498).

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

12870942 is a wasteful number, since it uses less digits than its factorization.

12870942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 12870942 is about 3587.6095105237. The cubic root of 12870942 is about 234.3527807559.

The spelling of 12870942 in words is "twelve million, eight hundred seventy thousand, nine hundred forty-two".