821332296 has 48 divisors (see below), whose sum is σ = 2226835260. Its totient is φ = 273482880.

The previous prime is 821332289. The next prime is 821332301. The reversal of 821332296 is 692233128.

It can be written as a sum of positive squares in 2 ways, for example, as 820822500 + 509796 = 28650^2 + 714^2 .

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

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 821332296.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67306 + ... + 78566.

Almost surely, 2^821332296 is an apocalyptic number.

It is an amenable number.

821332296 is an abundant number, since it is smaller than the sum of its proper divisors (1405502964).

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

821332296 is a wasteful number, since it uses less digits than its factorization.

821332296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12286 (or 12279 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 821332296 is about 28658.8955823493. The cubic root of 821332296 is about 936.4968050762.

The spelling of 821332296 in words is "eight hundred twenty-one million, three hundred thirty-two thousand, two hundred ninety-six".