223500240 has 120 divisors (see below), whose sum is σ = 768150240. Its totient is φ = 58205952.

The previous prime is 223500217. The next prime is 223500259. The reversal of 223500240 is 42005322.

223500240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27351 + ... + 34569.

It is an arithmetic number, because the mean of its divisors is an integer number (6401252).

Almost surely, 2^223500240 is an apocalyptic number.

223500240 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 223500240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (384075120).

223500240 is an abundant number, since it is smaller than the sum of its proper divisors (544650000).

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

223500240 is a wasteful number, since it uses less digits than its factorization.

223500240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7281 (or 7272 counting only the distinct ones).

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

The square root of 223500240 is about 14949.9244145246. The cubic root of 223500240 is about 606.8658016059.

Adding to 223500240 its reverse (42005322), we get a palindrome (265505562).

The spelling of 223500240 in words is "two hundred twenty-three million, five hundred thousand, two hundred forty".