400423322 has 8 divisors (see below), whose sum is σ = 646837716. Its totient is φ = 184810752.

The previous prime is 400423313. The next prime is 400423357. The reversal of 400423322 is 223324004.

It can be written as a sum of positive squares in 2 ways, for example, as 395174641 + 5248681 = 19879^2 + 2291^2 .

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 = 400423294 and 400423303.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7700423 + ... + 7700474.

Almost surely, 2^400423322 is an apocalyptic number.

400423322 is a deficient number, since it is larger than the sum of its proper divisors (246414394).

400423322 is a wasteful number, since it uses less digits than its factorization.

400423322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15400912.

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

The square root of 400423322 is about 20010.5802514570. The cubic root of 400423322 is about 737.0661300201.

Adding to 400423322 its reverse (223324004), we get a palindrome (623747326).

The spelling of 400423322 in words is "four hundred million, four hundred twenty-three thousand, three hundred twenty-two".