12945630 has 16 divisors (see below), whose sum is σ = 31069584. Its totient is φ = 3452160.

The previous prime is 12945617. The next prime is 12945637. The reversal of 12945630 is 3654921.

12945630 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 431521 = 12945630 / (1 + 2 + 9 + 4 + 5 + 6 + 3 + 0).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12945637) 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, 215731 + ... + 215790.

It is an arithmetic number, because the mean of its divisors is an integer number (1941849).

Almost surely, 2^12945630 is an apocalyptic number.

12945630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12945630 is an abundant number, since it is smaller than the sum of its proper divisors (18123954).

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

12945630 is a wasteful number, since it uses less digits than its factorization.

12945630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431531.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 12945630 is about 3598.0036131166. The cubic root of 12945630 is about 234.8052105485.

The spelling of 12945630 in words is "twelve million, nine hundred forty-five thousand, six hundred thirty".