401424322 has 32 divisors (see below), whose sum is σ = 688993200. Its totient is φ = 174037248.

The previous prime is 401424319. The next prime is 401424323. The reversal of 401424322 is 223424104.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 173686041 + 227738281 = 13179^2 + 15091^2 .

It is a super-2 number, since 2×401424322² = 322282972586319368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401424293 and 401424302.

It is not an unprimeable number, because it can be changed into a prime (401424323) by changing a digit.

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, 20704 + ... + 35092.

Almost surely, 2^401424322 is an apocalyptic number.

401424322 is a deficient number, since it is larger than the sum of its proper divisors (287568878).

401424322 is a wasteful number, since it uses less digits than its factorization.

401424322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14470.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 401424322 is about 20035.5764079799. The cubic root of 401424322 is about 737.6798049385.

Adding to 401424322 its reverse (223424104), we get a palindrome (624848426).

The spelling of 401424322 in words is "four hundred one million, four hundred twenty-four thousand, three hundred twenty-two".