824889140 has 12 divisors (see below), whose sum is σ = 1732267236. Its totient is φ = 329955648.

The previous prime is 824889083. The next prime is 824889157. The reversal of 824889140 is 41988428.

It is a happy number.

824889140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 211237156 + 613651984 = 14534^2 + 24772^2 .

It is a junction number, because it is equal to n+sod(n) for n = 824889091 and 824889100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20622209 + ... + 20622248.

It is an arithmetic number, because the mean of its divisors is an integer number (144355603).

Almost surely, 2^824889140 is an apocalyptic number.

It is an amenable number.

824889140 is an abundant number, since it is smaller than the sum of its proper divisors (907378096).

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

824889140 is a wasteful number, since it uses less digits than its factorization.

824889140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41244466 (or 41244464 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 44.

The square root of 824889140 is about 28720.8833429614. The cubic root of 824889140 is about 937.8467159655.

The spelling of 824889140 in words is "eight hundred twenty-four million, eight hundred eighty-nine thousand, one hundred forty".