823241472 has 72 divisors (see below), whose sum is σ = 2237738496. Its totient is φ = 268563456.

The previous prime is 823241459. The next prime is 823241479. The reversal of 823241472 is 274142328.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (823241479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24693 + ... + 47499.

Almost surely, 2^823241472 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 823241472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1118869248).

823241472 is an abundant number, since it is smaller than the sum of its proper divisors (1414497024).

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

823241472 is a wasteful number, since it uses less digits than its factorization.

823241472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22873 (or 22859 counting only the distinct ones).

The product of its digits is 21504, while the sum is 33.

The square root of 823241472 is about 28692.1848592957. The cubic root of 823241472 is about 937.2218683560.

The spelling of 823241472 in words is "eight hundred twenty-three million, two hundred forty-one thousand, four hundred seventy-two".