12870426 has 16 divisors (see below), whose sum is σ = 25781184. Its totient is φ = 4283424.

The previous prime is 12870421. The next prime is 12870449. The reversal of 12870426 is 62407821.

It is a junction number, because it is equal to n+sod(n) for n = 12870393 and 12870402.

It is not an unprimeable number, because it can be changed into a prime (12870421) 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, 3891 + ... + 6393.

It is an arithmetic number, because the mean of its divisors is an integer number (1611324).

Almost surely, 2^12870426 is an apocalyptic number.

12870426 is an abundant number, since it is smaller than the sum of its proper divisors (12910758).

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

12870426 is a wasteful number, since it uses less digits than its factorization.

12870426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3365.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 12870426 is about 3587.5375956218. The cubic root of 12870426 is about 234.3496489558.

The spelling of 12870426 in words is "twelve million, eight hundred seventy thousand, four hundred twenty-six".