220044513 has 32 divisors (see below), whose sum is σ = 327712000. Its totient is φ = 130450176.

The previous prime is 220044509. The next prime is 220044523. The reversal of 220044513 is 315440022.

It is not a de Polignac number, because 220044513 - 2² = 220044509 is a prime.

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 220044513.

It is not an unprimeable number, because it can be changed into a prime (220044523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156588 + ... + 157986.

It is an arithmetic number, because the mean of its divisors is an integer number (10241000).

Almost surely, 2^220044513 is an apocalyptic number.

It is an amenable number.

220044513 is a deficient number, since it is larger than the sum of its proper divisors (107667487).

220044513 is a wasteful number, since it uses less digits than its factorization.

220044513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 220044513 is about 14833.8974312215. The cubic root of 220044513 is about 603.7217855639.

Adding to 220044513 its reverse (315440022), we get a palindrome (535484535).

The spelling of 220044513 in words is "two hundred twenty million, forty-four thousand, five hundred thirteen".