823314492 has 432 divisors, whose sum is σ = 2949646336. Its totient is φ = 188179200.

The previous prime is 823314487. The next prime is 823314493. The reversal of 823314492 is 294413328.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823314493) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 12288243 + ... + 12288309.

Almost surely, 2^823314492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 823314492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1474823168).

823314492 is an abundant number, since it is smaller than the sum of its proper divisors (2126331844).

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

823314492 is a wasteful number, since it uses less digits than its factorization.

823314492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 134 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 823314492 is about 28693.4573030160. The cubic root of 823314492 is about 937.2495774871.

The spelling of 823314492 in words is "eight hundred twenty-three million, three hundred fourteen thousand, four hundred ninety-two".