623322220 has 12 divisors (see below), whose sum is σ = 1308976704. Its totient is φ = 249328880.

The previous prime is 623322211. The next prime is 623322229. The reversal of 623322220 is 22223326.

It is an interprime number because it is at equal distance from previous prime (623322211) and next prime (623322229).

It is a junction number, because it is equal to n+sod(n) for n = 623322191 and 623322200.

It is not an unprimeable number, because it can be changed into a prime (623322229) 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 3 ways as a sum of consecutive naturals, for example, 15583036 + ... + 15583075.

It is an arithmetic number, because the mean of its divisors is an integer number (109081392).

Almost surely, 2^623322220 is an apocalyptic number.

It is an amenable number.

623322220 is an abundant number, since it is smaller than the sum of its proper divisors (685654484).

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

623322220 is a wasteful number, since it uses less digits than its factorization.

623322220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31166120 (or 31166118 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 623322220 is about 24966.4218501571. The cubic root of 623322220 is about 854.2222308120. Note that the first 4 decimals are identical.

Adding to 623322220 its reverse (22223326), we get a palindrome (645545546).

The spelling of 623322220 in words is "six hundred twenty-three million, three hundred twenty-two thousand, two hundred twenty".