220724052 has 12 divisors (see below), whose sum is σ = 515022816. Its totient is φ = 73574680.

The previous prime is 220724051. The next prime is 220724069. The reversal of 220724052 is 250427022.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220724051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9196824 + ... + 9196847.

It is an arithmetic number, because the mean of its divisors is an integer number (42918568).

Almost surely, 2^220724052 is an apocalyptic number.

It is an amenable number.

220724052 is an abundant number, since it is smaller than the sum of its proper divisors (294298764).

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

220724052 is a wasteful number, since it uses less digits than its factorization.

220724052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18393678 (or 18393676 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 220724052 is about 14856.7847127163. The cubic root of 220724052 is about 604.3426158730.

The spelling of 220724052 in words is "two hundred twenty million, seven hundred twenty-four thousand, fifty-two".