223260840 has 128 divisors (see below), whose sum is σ = 811900800. Its totient is φ = 54120960.

The previous prime is 223260823. The next prime is 223260883. The reversal of 223260840 is 48062322.

223260840 is a `hidden beast` number, since 22 + 32 + 608 + 4 + 0 = 666.

It is a super-3 number, since 3×223260840³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2484 + ... + 21276.

It is an arithmetic number, because the mean of its divisors is an integer number (6342975).

Almost surely, 2^223260840 is an apocalyptic number.

223260840 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 223260840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (405950400).

223260840 is an abundant number, since it is smaller than the sum of its proper divisors (588639960).

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

223260840 is a wasteful number, since it uses less digits than its factorization.

223260840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18824 (or 18814 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 223260840 is about 14941.9155398496. The cubic root of 223260840 is about 606.6490448262.

The spelling of 223260840 in words is "two hundred twenty-three million, two hundred sixty thousand, eight hundred forty".