12669570 has 24 divisors (see below), whose sum is σ = 32941116. Its totient is φ = 3378528.

The previous prime is 12669557. The next prime is 12669571. The reversal of 12669570 is 7596621.

12669570 is a `hidden beast` number, since 1 + 26 + 69 + 570 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12510369 + 159201 = 3537^2 + 399^2 .

It is not an unprimeable number, because it can be changed into a prime (12669571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70297 + ... + 70476.

Almost surely, 2^12669570 is an apocalyptic number.

12669570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12669570 is an abundant number, since it is smaller than the sum of its proper divisors (20271546).

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

12669570 is a wasteful number, since it uses less digits than its factorization.

12669570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140786 (or 140783 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 12669570 is about 3559.4339437613. The cubic root of 12669570 is about 233.1241640222.

It can be divided in two parts, 126 and 69570, that added together give a palindrome (69696).

The spelling of 12669570 in words is "twelve million, six hundred sixty-nine thousand, five hundred seventy".