220535700 has 144 divisors (see below), whose sum is σ = 795615744. Its totient is φ = 45820800.

The previous prime is 220535699. The next prime is 220535719. The reversal of 220535700 is 7535022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18327 + ... + 27873.

Almost surely, 2^220535700 is an apocalyptic number.

220535700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220535700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (397807872).

220535700 is an abundant number, since it is smaller than the sum of its proper divisors (575080044).

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

220535700 is a wasteful number, since it uses less digits than its factorization.

220535700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9582 (or 9575 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 220535700 is about 14850.4444377938. Note that the first 4 decimals coincide. The cubic root of 220535700 is about 604.1706643149.

The spelling of 220535700 in words is "two hundred twenty million, five hundred thirty-five thousand, seven hundred".