12940870 has 8 divisors (see below), whose sum is σ = 23293584. Its totient is φ = 5176344.

The previous prime is 12940847. The next prime is 12940877. The reversal of 12940870 is 7804921.

12940870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×12940870² = 334932232713800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12940877) 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, 647034 + ... + 647053.

It is an arithmetic number, because the mean of its divisors is an integer number (2911698).

Almost surely, 2^12940870 is an apocalyptic number.

12940870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12940870 is a deficient number, since it is larger than the sum of its proper divisors (10352714).

12940870 is a wasteful number, since it uses less digits than its factorization.

12940870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294094.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 12940870 is about 3597.3420743655. The cubic root of 12940870 is about 234.7764283825.

The spelling of 12940870 in words is "twelve million, nine hundred forty thousand, eight hundred seventy".