839225642 has 8 divisors (see below), whose sum is σ = 1262446500. Its totient is φ = 418410144.

The previous prime is 839225599. The next prime is 839225657. The reversal of 839225642 is 246522938.

It can be written as a sum of positive squares in 2 ways, for example, as 805481161 + 33744481 = 28381^2 + 5809^2 .

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 839225642.

It is an unprimeable number.

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, 600467 + ... + 601862.

Almost surely, 2^839225642 is an apocalyptic number.

839225642 is a deficient number, since it is larger than the sum of its proper divisors (423220858).

839225642 is a wasteful number, since it uses less digits than its factorization.

839225642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202680.

The product of its digits is 207360, while the sum is 41.

The square root of 839225642 is about 28969.3914675473. The cubic root of 839225642 is about 943.2487716809.

The spelling of 839225642 in words is "eight hundred thirty-nine million, two hundred twenty-five thousand, six hundred forty-two".