13570642 has 8 divisors (see below), whose sum is σ = 20407932. Its totient is φ = 6768000.

The previous prime is 13570603. The next prime is 13570643. The reversal of 13570642 is 24607531.

It can be written as a sum of positive squares in 2 ways, for example, as 10949481 + 2621161 = 3309^2 + 1619^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 13570642.

It is not an unprimeable number, because it can be changed into a prime (13570643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7659 + ... + 9262.

Almost surely, 2^13570642 is an apocalyptic number.

13570642 is a deficient number, since it is larger than the sum of its proper divisors (6837290).

13570642 is a wasteful number, since it uses less digits than its factorization.

13570642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17324.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 13570642 is about 3683.8352297572. The cubic root of 13570642 is about 238.5247583760.

The spelling of 13570642 in words is "thirteen million, five hundred seventy thousand, six hundred forty-two".