320630022 has 16 divisors (see below), whose sum is σ = 712511280. Its totient is φ = 106876656.

The previous prime is 320630017. The next prime is 320630027. The reversal of 320630022 is 220036023.

320630022 is a `hidden beast` number, since 32 + 0 + 630 + 0 + 2 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (320630017) and next prime (320630027).

It is a super-2 number, since 2×320630022² = 205607222015440968, 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 = 320629977 and 320630004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320630027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2968743 + ... + 2968850.

It is an arithmetic number, because the mean of its divisors is an integer number (44531955).

Almost surely, 2^320630022 is an apocalyptic number.

320630022 is an abundant number, since it is smaller than the sum of its proper divisors (391881258).

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

320630022 is a wasteful number, since it uses less digits than its factorization.

320630022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5937604 (or 5937598 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 320630022 is about 17906.1448112094. The cubic root of 320630022 is about 684.4389687626.

Adding to 320630022 its reverse (220036023), we get a palindrome (540666045).

The spelling of 320630022 in words is "three hundred twenty million, six hundred thirty thousand, twenty-two".