223401280 has 56 divisors (see below), whose sum is σ = 535362912. Its totient is φ = 88791552.

The previous prime is 223401257. The next prime is 223401281. The reversal of 223401280 is 82104322.

It is a super-3 number, since 3×223401280³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223401281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50019 + ... + 54301.

It is an arithmetic number, because the mean of its divisors is an integer number (9560052).

Almost surely, 2^223401280 is an apocalyptic number.

223401280 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 223401280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267681456).

223401280 is an abundant number, since it is smaller than the sum of its proper divisors (311961632).

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

223401280 is a wasteful number, since it uses less digits than its factorization.

223401280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4463 (or 4453 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 223401280 is about 14946.6143323497. The cubic root of 223401280 is about 606.7762203366.

The spelling of 223401280 in words is "two hundred twenty-three million, four hundred one thousand, two hundred eighty".