823668462 has 48 divisors (see below), whose sum is σ = 1898696592. Its totient is φ = 257160960.

The previous prime is 823668451. The next prime is 823668491. The reversal of 823668462 is 264866328.

823668462 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58188 + ... + 70944.

It is an arithmetic number, because the mean of its divisors is an integer number (39556179).

Almost surely, 2^823668462 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 823668462, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (949348296).

823668462 is an abundant number, since it is smaller than the sum of its proper divisors (1075028130).

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

823668462 is a wasteful number, since it uses less digits than its factorization.

823668462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12993 (or 12990 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The square root of 823668462 is about 28699.6247710663. The cubic root of 823668462 is about 937.3838763903.

The spelling of 823668462 in words is "eight hundred twenty-three million, six hundred sixty-eight thousand, four hundred sixty-two".