223969280 has 64 divisors (see below), whose sum is σ = 537911280. Its totient is φ = 89522176.

The previous prime is 223969279. The next prime is 223969289. The reversal of 223969280 is 82969322.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223969289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163157 + ... + 164523.

Almost surely, 2^223969280 is an apocalyptic number.

223969280 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 223969280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268955640).

223969280 is an abundant number, since it is smaller than the sum of its proper divisors (313942000).

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

223969280 is an frugal number, since it uses more digits than its factorization.

223969280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402 (or 1374 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 223969280 is about 14965.6032287376. The cubic root of 223969280 is about 607.2900300067.

The spelling of 223969280 in words is "two hundred twenty-three million, nine hundred sixty-nine thousand, two hundred eighty".