220423293 has 6 divisors (see below), whose sum is σ = 318389214. Its totient is φ = 146948856.

The previous prime is 220423271. The next prime is 220423297. The reversal of 220423293 is 392324022.

It can be written as a sum of positive squares in only one way, i.e., 220166244 + 257049 = 14838^2 + 507^2 .

It is not a de Polignac number, because 220423293 - 2²⁶ = 153314429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220423297) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12245730 + ... + 12245747.

It is an arithmetic number, because the mean of its divisors is an integer number (53064869).

Almost surely, 2^220423293 is an apocalyptic number.

It is an amenable number.

220423293 is a deficient number, since it is larger than the sum of its proper divisors (97965921).

220423293 is a wasteful number, since it uses less digits than its factorization.

220423293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24491483 (or 24491480 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 220423293 is about 14846.6593212076. The cubic root of 220423293 is about 604.0679983164.

The spelling of 220423293 in words is "two hundred twenty million, four hundred twenty-three thousand, two hundred ninety-three".