383997822 has 32 divisors (see below), whose sum is σ = 832366752. Its totient is φ = 117396864.

The previous prime is 383997797. The next prime is 383997839. The reversal of 383997822 is 228799383.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3433 + ... + 27924.

It is an arithmetic number, because the mean of its divisors is an integer number (26011461).

Almost surely, 2^383997822 is an apocalyptic number.

383997822 is an abundant number, since it is smaller than the sum of its proper divisors (448368930).

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

383997822 is a wasteful number, since it uses less digits than its factorization.

383997822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31532.

The product of its digits is 1306368, while the sum is 51.

The square root of 383997822 is about 19595.8623693881. The cubic root of 383997822 is about 726.8468629328.

The spelling of 383997822 in words is "three hundred eighty-three million, nine hundred ninety-seven thousand, eight hundred twenty-two".