825438342 has 8 divisors (see below), whose sum is σ = 1650876696. Its totient is φ = 275146112.

The previous prime is 825438331. The next prime is 825438347. The reversal of 825438342 is 243834528.

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

825438342 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 825438342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825438347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68786523 + ... + 68786534.

It is an arithmetic number, because the mean of its divisors is an integer number (206359587).

Almost surely, 2^825438342 is an apocalyptic number.

825438342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

825438342 is a wasteful number, since it uses less digits than its factorization.

825438342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137573062.

The product of its digits is 184320, while the sum is 39.

The square root of 825438342 is about 28730.4427741725. The cubic root of 825438342 is about 938.0548057563.

The spelling of 825438342 in words is "eight hundred twenty-five million, four hundred thirty-eight thousand, three hundred forty-two".