823398452 has 24 divisors (see below), whose sum is σ = 1488170880. Its totient is φ = 398404160.

The previous prime is 823398439. The next prime is 823398493. The reversal of 823398452 is 254893328.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7874 + ... + 41337.

It is an arithmetic number, because the mean of its divisors is an integer number (62007120).

Almost surely, 2^823398452 is an apocalyptic number.

It is an amenable number.

823398452 is a deficient number, since it is larger than the sum of its proper divisors (664772428).

823398452 is a wasteful number, since it uses less digits than its factorization.

823398452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49351 (or 49349 counting only the distinct ones).

The product of its digits is 414720, while the sum is 44.

The square root of 823398452 is about 28694.9203170178. The cubic root of 823398452 is about 937.2814360298.

The spelling of 823398452 in words is "eight hundred twenty-three million, three hundred ninety-eight thousand, four hundred fifty-two".