220123450 has 36 divisors (see below), whose sum is σ = 419348718. Its totient is φ = 85965600.

The previous prime is 220123411. The next prime is 220123451. The reversal of 220123450 is 54321022.

It can be written as a sum of positive squares in 3 ways, for example, as 82319329 + 137804121 = 9073^2 + 11739^2 .

It is not an unprimeable number, because it can be changed into a prime (220123451) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 91260 + ... + 93640.

Almost surely, 2^220123450 is an apocalyptic number.

220123450 is a deficient number, since it is larger than the sum of its proper divisors (199225268).

220123450 is a wasteful number, since it uses less digits than its factorization.

220123450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2479 (or 2431 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 220123450 is about 14836.5578892141. The cubic root of 220123450 is about 603.7939683668.

Adding to 220123450 its reverse (54321022), we get a palindrome (274444472).

It can be divided in two parts, 2201 and 23450, that added together give a triangular number (25651 = T₂₂₆).

The spelling of 220123450 in words is "two hundred twenty million, one hundred twenty-three thousand, four hundred fifty".