400243322 has 8 divisors (see below), whose sum is σ = 631963200. Its totient is φ = 189588924.

The previous prime is 400243289. The next prime is 400243331. The reversal of 400243322 is 223342004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 400243294 and 400243303.

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 3 ways as a sum of consecutive naturals, for example, 5266322 + ... + 5266397.

It is an arithmetic number, because the mean of its divisors is an integer number (78995400).

Almost surely, 2^400243322 is an apocalyptic number.

400243322 is a deficient number, since it is larger than the sum of its proper divisors (231719878).

400243322 is a wasteful number, since it uses less digits than its factorization.

400243322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10532740.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 400243322 is about 20006.0821251938. The cubic root of 400243322 is about 736.9556704299.

Adding to 400243322 its reverse (223342004), we get a palindrome (623585326).

The spelling of 400243322 in words is "four hundred million, two hundred forty-three thousand, three hundred twenty-two".