220240423 has 8 divisors (see below), whose sum is σ = 251134128. Its totient is φ = 191339904.

The previous prime is 220240411. The next prime is 220240429. The reversal of 220240423 is 324042022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220240423 - 2⁹ = 220239911 is a prime.

It is a super-3 number, since 3×220240423³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220240423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220240429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498061 + ... + 498502.

It is an arithmetic number, because the mean of its divisors is an integer number (31391766).

Almost surely, 2^220240423 is an apocalyptic number.

220240423 is a deficient number, since it is larger than the sum of its proper divisors (30893705).

220240423 is a wasteful number, since it uses less digits than its factorization.

220240423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996593.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 220240423 is about 14840.4994188201. The cubic root of 220240423 is about 603.9009009163.

Adding to 220240423 its reverse (324042022), we get a palindrome (544282445).

The spelling of 220240423 in words is "two hundred twenty million, two hundred forty thousand, four hundred twenty-three".