220700 has 18 divisors (see below), whose sum is σ = 479136. Its totient is φ = 88240.

The previous prime is 220699. The next prime is 220709. The reversal of 220700 is 7022.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 220700.

It is not an unprimeable number, because it can be changed into a prime (220709) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1004 + ... + 1203.

2²²⁰⁷⁰⁰ is an apocalyptic number.

220700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220700 is an abundant number, since it is smaller than the sum of its proper divisors (258436).

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

220700 is a wasteful number, since it uses less digits than its factorization.

220700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221 (or 2214 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 11.

The square root of 220700 is about 469.7871858619. The cubic root of 220700 is about 60.4320663611.

Adding to 220700 its reverse (7022), we get a palindrome (227722).

It can be divided in two parts, 2 and 20700, that added together give a palindrome (20702).

The spelling of 220700 in words is "two hundred twenty thousand, seven hundred", and thus it is an iban number.