12881770 has 32 divisors (see below), whose sum is σ = 25474176. Its totient is φ = 4651200.

The previous prime is 12881741. The next prime is 12881773. The reversal of 12881770 is 7718821.

12881770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12881773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19587 + ... + 20233.

It is an arithmetic number, because the mean of its divisors is an integer number (796068).

Almost surely, 2^12881770 is an apocalyptic number.

12881770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12881770 is a deficient number, since it is larger than the sum of its proper divisors (12592406).

12881770 is a wasteful number, since it uses less digits than its factorization.

12881770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846.

The product of its (nonzero) digits is 6272, while the sum is 34.

The square root of 12881770 is about 3589.1182761230. The cubic root of 12881770 is about 234.4184807034.

The spelling of 12881770 in words is "twelve million, eight hundred eighty-one thousand, seven hundred seventy".