243050220 has 120 divisors (see below), whose sum is σ = 871420704. Its totient is φ = 55551744.

The previous prime is 243050219. The next prime is 243050243. The reversal of 243050220 is 22050342.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 243050193 and 243050202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 624 + ... + 22056.

Almost surely, 2^243050220 is an apocalyptic number.

243050220 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 243050220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435710352).

243050220 is an abundant number, since it is smaller than the sum of its proper divisors (628370484).

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

243050220 is a wasteful number, since it uses less digits than its factorization.

243050220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21461 (or 21450 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 243050220 is about 15590.0679921545. The cubic root of 243050220 is about 624.0681323535.

It can be divided in two parts, 2430 and 50220, that added together give a triangular number (52650 = T₃₂₄).

The spelling of 243050220 in words is "two hundred forty-three million, fifty thousand, two hundred twenty".