825449472 has 66 divisors (see below), whose sum is σ = 2383494048. Its totient is φ = 275146752.

The previous prime is 825449453. The next prime is 825449483. The reversal of 825449472 is 274944528.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 35568 + ... + 53999.

Almost surely, 2^825449472 is an apocalyptic number.

It is an amenable number.

825449472 is an abundant number, since it is smaller than the sum of its proper divisors (1558044576).

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

825449472 is a wasteful number, since it uses less digits than its factorization.

825449472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89593 (or 89572 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 825449472 is about 28730.6364704996. The cubic root of 825449472 is about 938.0590219012.

The spelling of 825449472 in words is "eight hundred twenty-five million, four hundred forty-nine thousand, four hundred seventy-two".