825636432 has 40 divisors (see below), whose sum is σ = 2142077184. Its totient is φ = 274027264.

The previous prime is 825636407. The next prime is 825636443. The reversal of 825636432 is 234636528.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 25728 + ... + 48095.

Almost surely, 2^825636432 is an apocalyptic number.

It is an amenable number.

825636432 is an abundant number, since it is smaller than the sum of its proper divisors (1316440752).

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

825636432 is a wasteful number, since it uses less digits than its factorization.

825636432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74067 (or 74061 counting only the distinct ones).

The product of its digits is 207360, while the sum is 39.

The square root of 825636432 is about 28733.8899559388. The cubic root of 825636432 is about 938.1298383802.

The spelling of 825636432 in words is "eight hundred twenty-five million, six hundred thirty-six thousand, four hundred thirty-two".