220622623 has 24 divisors (see below), whose sum is σ = 255775968. Its totient is φ = 189079488.

The previous prime is 220622587. The next prime is 220622639. The reversal of 220622623 is 326226022.

It is not a de Polignac number, because 220622623 - 2²⁵ = 187068191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220622323) by changing a digit.

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, 248286 + ... + 249172.

It is an arithmetic number, because the mean of its divisors is an integer number (10657332).

Almost surely, 2^220622623 is an apocalyptic number.

220622623 is a deficient number, since it is larger than the sum of its proper divisors (35153345).

220622623 is a wasteful number, since it uses less digits than its factorization.

220622623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991 (or 972 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 220622623 is about 14853.3707622209. The cubic root of 220622623 is about 604.2500307977.

Adding to 220622623 its reverse (326226022), we get a palindrome (546848645).

The spelling of 220622623 in words is "two hundred twenty million, six hundred twenty-two thousand, six hundred twenty-three".