223535280 has 80 divisors (see below), whose sum is σ = 709892064. Its totient is φ = 58152960.

The previous prime is 223535251. The next prime is 223535281. The reversal of 223535280 is 82535322.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (223535281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1519 + ... + 21198.

Almost surely, 2^223535280 is an apocalyptic number.

223535280 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 223535280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354946032).

223535280 is an abundant number, since it is smaller than the sum of its proper divisors (486356784).

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

223535280 is a wasteful number, since it uses less digits than its factorization.

223535280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22774 (or 22768 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 223535280 is about 14951.0962808752. The cubic root of 223535280 is about 606.8975144227.

The spelling of 223535280 in words is "two hundred twenty-three million, five hundred thirty-five thousand, two hundred eighty".