220244064 has 24 divisors (see below), whose sum is σ = 578140920. Its totient is φ = 73414656.

The previous prime is 220243967. The next prime is 220244071. The reversal of 220244064 is 460442022.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1147009 + ... + 1147200.

It is an arithmetic number, because the mean of its divisors is an integer number (24089205).

Almost surely, 2^220244064 is an apocalyptic number.

220244064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

220244064 is an abundant number, since it is smaller than the sum of its proper divisors (357896856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220244064 is a wasteful number, since it uses less digits than its factorization.

220244064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2294222 (or 2294214 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 220244064 is about 14840.6220893870. The cubic root of 220244064 is about 603.9042287811.

Adding to 220244064 its reverse (460442022), we get a palindrome (680686086).

The spelling of 220244064 in words is "two hundred twenty million, two hundred forty-four thousand, sixty-four".