220299623 has 4 divisors (see below), whose sum is σ = 231894360. Its totient is φ = 208704888.

The previous prime is 220299613. The next prime is 220299659. The reversal of 220299623 is 326992022.

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 220299623 - 2¹⁶ = 220234087 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 (220299613) 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, 5797340 + ... + 5797377.

It is an arithmetic number, because the mean of its divisors is an integer number (57973590).

Almost surely, 2^220299623 is an apocalyptic number.

220299623 is a deficient number, since it is larger than the sum of its proper divisors (11594737).

220299623 is a wasteful number, since it uses less digits than its factorization.

220299623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11594736.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 220299623 is about 14842.4938268473. The cubic root of 220299623 is about 603.9550050177.

The spelling of 220299623 in words is "two hundred twenty million, two hundred ninety-nine thousand, six hundred twenty-three".