220003518 has 16 divisors (see below), whose sum is σ = 502865280. Its totient is φ = 62858136.

The previous prime is 220003513. The next prime is 220003573. The reversal of 220003518 is 815300022.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 220003494 and 220003503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220003513) 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, 2619048 + ... + 2619131.

It is an arithmetic number, because the mean of its divisors is an integer number (31429080).

Almost surely, 2^220003518 is an apocalyptic number.

220003518 is an abundant number, since it is smaller than the sum of its proper divisors (282861762).

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

220003518 is a wasteful number, since it uses less digits than its factorization.

220003518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5238191.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 220003518 is about 14832.5155654730. The cubic root of 220003518 is about 603.6842914657.

The spelling of 220003518 in words is "two hundred twenty million, three thousand, five hundred eighteen".