822494331 has 20 divisors (see below), whose sum is σ = 1241342872. Its totient is φ = 542671488.

The previous prime is 822494327. The next prime is 822494339. The reversal of 822494331 is 133494228.

822494331 is a `hidden beast` number, since 82 + 249 + 4 + 331 = 666.

It is not a de Polignac number, because 822494331 - 2² = 822494327 is a prime.

It is a super-2 number, since 2×822494331² = 1352993849054275122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (822494339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 44485 + ... + 60198.

Almost surely, 2^822494331 is an apocalyptic number.

822494331 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

822494331 is a deficient number, since it is larger than the sum of its proper divisors (418848541).

822494331 is a wasteful number, since it uses less digits than its factorization.

822494331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104792 (or 104783 counting only the distinct ones).

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

The square root of 822494331 is about 28679.1619647437. The cubic root of 822494331 is about 936.9382541917.

The spelling of 822494331 in words is "eight hundred twenty-two million, four hundred ninety-four thousand, three hundred thirty-one".