825308238 has 8 divisors (see below), whose sum is σ = 1650616488. Its totient is φ = 275102744.

The previous prime is 825308219. The next prime is 825308243. The reversal of 825308238 is 832803528.

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

825308238 is an admirable number.

It is a super-2 number, since 2×825308238² = 1362267375421329288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 825308196 and 825308205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68775681 + ... + 68775692.

It is an arithmetic number, because the mean of its divisors is an integer number (206327061).

Almost surely, 2^825308238 is an apocalyptic number.

825308238 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.

825308238 is a wasteful number, since it uses less digits than its factorization.

825308238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137551378.

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 825308238 is about 28728.1784664465. The cubic root of 825308238 is about 938.0055183700.

The spelling of 825308238 in words is "eight hundred twenty-five million, three hundred eight thousand, two hundred thirty-eight".