825738842 has 8 divisors (see below), whose sum is σ = 1272084276. Its totient is φ = 401710752.

The previous prime is 825738839. The next prime is 825738869. The reversal of 825738842 is 248837528.

It can be written as a sum of positive squares in 2 ways, for example, as 685340041 + 140398801 = 26179^2 + 11849^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5579243 + ... + 5579390.

Almost surely, 2^825738842 is an apocalyptic number.

825738842 is a deficient number, since it is larger than the sum of its proper divisors (446345434).

825738842 is a wasteful number, since it uses less digits than its factorization.

825738842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11158672.

The product of its digits is 860160, while the sum is 47.

The square root of 825738842 is about 28735.6719427265. The cubic root of 825738842 is about 938.1686245824.

The spelling of 825738842 in words is "eight hundred twenty-five million, seven hundred thirty-eight thousand, eight hundred forty-two".