1420031322 has 48 divisors (see below), whose sum is σ = 3228126720. Its totient is φ = 450554400.

The previous prime is 1420031317. The next prime is 1420031413. The reversal of 1420031322 is 2231300241.

It is a super-2 number, since 2×1420031322² = 4032977910922135368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1420031295 and 1420031304.

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 23 ways as a sum of consecutive naturals, for example, 13179 + ... + 54897.

It is an arithmetic number, because the mean of its divisors is an integer number (67252640).

Almost surely, 2^1420031322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1420031322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1614063360).

1420031322 is an abundant number, since it is smaller than the sum of its proper divisors (1808095398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1420031322 is a wasteful number, since it uses less digits than its factorization.

1420031322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41819 (or 41816 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1420031322 is about 37683.3029603298. The cubic root of 1420031322 is about 1123.9991287886. Note that the first 3 decimals are identical.

Adding to 1420031322 its reverse (2231300241), we get a palindrome (3651331563).

The spelling of 1420031322 in words is "one billion, four hundred twenty million, thirty-one thousand, three hundred twenty-two".