825446380 has 48 divisors (see below), whose sum is σ = 1926729504. Its totient is φ = 294494720.

The previous prime is 825446359. The next prime is 825446387. The reversal of 825446380 is 83644528.

It is not an unprimeable number, because it can be changed into a prime (825446387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23737 + ... + 47056.

It is an arithmetic number, because the mean of its divisors is an integer number (40140198).

Almost surely, 2^825446380 is an apocalyptic number.

It is an amenable number.

825446380 is an abundant number, since it is smaller than the sum of its proper divisors (1101283124).

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

825446380 is a wasteful number, since it uses less digits than its factorization.

825446380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70866 (or 70864 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 40.

The square root of 825446380 is about 28730.5826602942. The cubic root of 825446380 is about 938.0578506274.

The spelling of 825446380 in words is "eight hundred twenty-five million, four hundred forty-six thousand, three hundred eighty".