420331322 has 8 divisors (see below), whose sum is σ = 647537556. Its totient is φ = 204485472.

The previous prime is 420331291. The next prime is 420331333. The reversal of 420331322 is 223133024.

It can be written as a sum of positive squares in 2 ways, for example, as 419881081 + 450241 = 20491^2 + 671^2 .

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 = 420331294 and 420331303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2840003 + ... + 2840150.

Almost surely, 2^420331322 is an apocalyptic number.

420331322 is a deficient number, since it is larger than the sum of its proper divisors (227206234).

420331322 is a wasteful number, since it uses less digits than its factorization.

420331322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5680192.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 420331322 is about 20501.9833674696. The cubic root of 420331322 is about 749.0841098341.

Adding to 420331322 its reverse (223133024), we get a palindrome (643464346).

The spelling of 420331322 in words is "four hundred twenty million, three hundred thirty-one thousand, three hundred twenty-two".