220743552 has 64 divisors (see below), whose sum is σ = 588805200. Its totient is φ = 73273344.

The previous prime is 220743541. The next prime is 220743559. The reversal of 220743552 is 255347022.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220743559) 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, 102228 + ... + 104364.

Almost surely, 2^220743552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220743552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294402600).

220743552 is an abundant number, since it is smaller than the sum of its proper divisors (368061648).

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

220743552 is a wasteful number, since it uses less digits than its factorization.

220743552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2423 (or 2411 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 220743552 is about 14857.4409640422. The cubic root of 220743552 is about 604.3604123537.

The spelling of 220743552 in words is "two hundred twenty million, seven hundred forty-three thousand, five hundred fifty-two".