404040322 has 16 divisors (see below), whose sum is σ = 709535232. Its totient is φ = 168936480.

The previous prime is 404040317. The next prime is 404040323. The reversal of 404040322 is 223040404.

It is a self number, because there is not a number n which added to its sum of digits gives 404040322.

It is not an unprimeable number, because it can be changed into a prime (404040323) 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, 351378 + ... + 352525.

It is an arithmetic number, because the mean of its divisors is an integer number (44345952).

Almost surely, 2^404040322 is an apocalyptic number.

404040322 is a deficient number, since it is larger than the sum of its proper divisors (305494910).

404040322 is a wasteful number, since it uses less digits than its factorization.

404040322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703953.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 404040322 is about 20100.7542644549. The cubic root of 404040322 is about 739.2787725834.

Adding to 404040322 its reverse (223040404), we get a palindrome (627080726).

The spelling of 404040322 in words is "four hundred four million, forty thousand, three hundred twenty-two".