823040396 has 12 divisors (see below), whose sum is σ = 1475450760. Its totient is φ = 401483040.

The previous prime is 823040341. The next prime is 823040399. The reversal of 823040396 is 693040328.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (823040399) 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 3 ways as a sum of consecutive naturals, for example, 2509106 + ... + 2509433.

It is an arithmetic number, because the mean of its divisors is an integer number (122954230).

Almost surely, 2^823040396 is an apocalyptic number.

It is an amenable number.

823040396 is a deficient number, since it is larger than the sum of its proper divisors (652410364).

823040396 is a wasteful number, since it uses less digits than its factorization.

823040396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5018584 (or 5018582 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 823040396 is about 28688.6806249434. The cubic root of 823040396 is about 937.1455569391.

The spelling of 823040396 in words is "eight hundred twenty-three million, forty thousand, three hundred ninety-six".