220524423 has 16 divisors (see below), whose sum is σ = 343188480. Its totient is φ = 123332256.

The previous prime is 220524419. The next prime is 220524433. The reversal of 220524423 is 324425022.

It is a happy number.

It is not a de Polignac number, because 220524423 - 2² = 220524419 is a prime.

It is a super-2 number, since 2×220524423² = 97262042278965858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220524393 and 220524402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220524413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110728 + ... + 112701.

It is an arithmetic number, because the mean of its divisors is an integer number (21449280).

Almost surely, 2^220524423 is an apocalyptic number.

220524423 is a deficient number, since it is larger than the sum of its proper divisors (122664057).

220524423 is a wasteful number, since it uses less digits than its factorization.

220524423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223486.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 220524423 is about 14850.0647473336. The cubic root of 220524423 is about 604.1603661354.

Adding to 220524423 its reverse (324425022), we get a palindrome (544949445).

The spelling of 220524423 in words is "two hundred twenty million, five hundred twenty-four thousand, four hundred twenty-three".