220049 has 4 divisors (see below), whose sum is σ = 221364. Its totient is φ = 218736.

The previous prime is 220021. The next prime is 220057. The reversal of 220049 is 940022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 117649 + 102400 = 343^2 + 320^2 .

It is a cyclic number.

It is not a de Polignac number, because 220049 - 2¹² = 215953 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362 + ... + 755.

It is an arithmetic number, because the mean of its divisors is an integer number (55341).

2²²⁰⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

220049 is a deficient number, since it is larger than the sum of its proper divisors (1315).

220049 is a wasteful number, since it uses less digits than its factorization.

220049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 220049 is about 469.0938072497. The cubic root of 220049 is about 60.3725889099.

The spelling of 220049 in words is "two hundred twenty thousand, forty-nine".