825430340 has 24 divisors (see below), whose sum is σ = 1981033152. Its totient is φ = 283004640.

The previous prime is 825430337. The next prime is 825430351. The reversal of 825430340 is 43034528.

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 7 ways as a sum of consecutive naturals, for example, 2947826 + ... + 2948105.

It is an arithmetic number, because the mean of its divisors is an integer number (82543048).

Almost surely, 2^825430340 is an apocalyptic number.

It is an amenable number.

825430340 is an abundant number, since it is smaller than the sum of its proper divisors (1155602812).

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

825430340 is a wasteful number, since it uses less digits than its factorization.

825430340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5895947 (or 5895945 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 825430340 is about 28730.3035138858. The cubic root of 825430340 is about 938.0517745027.

Adding to 825430340 its reverse (43034528), we get a palindrome (868464868).

The spelling of 825430340 in words is "eight hundred twenty-five million, four hundred thirty thousand, three hundred forty".