422040331 has 4 divisors (see below), whose sum is σ = 444253000. Its totient is φ = 399827664.

The previous prime is 422040329. The next prime is 422040349. The reversal of 422040331 is 133040224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 422040331 - 2¹ = 422040329 is a prime.

It is a super-2 number, since 2×422040331² = 356236081981179122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 22212649 = 422040331 / (4 + 2 + 2 + 0 + 4 + 0 + 3 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 422040299 and 422040308.

It is not an unprimeable number, because it can be changed into a prime (422040361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11106306 + ... + 11106343.

It is an arithmetic number, because the mean of its divisors is an integer number (111063250).

Almost surely, 2^422040331 is an apocalyptic number.

422040331 is a deficient number, since it is larger than the sum of its proper divisors (22212669).

422040331 is a wasteful number, since it uses less digits than its factorization.

422040331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22212668.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 422040331 is about 20543.6202019021. The cubic root of 422040331 is about 750.0979611302.

Adding to 422040331 its reverse (133040224), we get a palindrome (555080555).

It can be divided in two parts, 4220 and 40331, that added together give a triangular number (44551 = T₂₉₈).

The spelling of 422040331 in words is "four hundred twenty-two million, forty thousand, three hundred thirty-one".