823325144 has 16 divisors (see below), whose sum is σ = 1558723920. Its totient is φ = 407665440.

The previous prime is 823325137. The next prime is 823325149. The reversal of 823325144 is 441523328.

It is a self number, because there is not a number n which added to its sum of digits gives 823325144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823325149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498767 + ... + 500414.

It is an arithmetic number, because the mean of its divisors is an integer number (97420245).

Almost surely, 2^823325144 is an apocalyptic number.

It is an amenable number.

823325144 is a deficient number, since it is larger than the sum of its proper divisors (735398776).

823325144 is a wasteful number, since it uses less digits than its factorization.

823325144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999290 (or 999286 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 823325144 is about 28693.6429196434. The cubic root of 823325144 is about 937.2536194984.

The spelling of 823325144 in words is "eight hundred twenty-three million, three hundred twenty-five thousand, one hundred forty-four".