223890240 has 112 divisors (see below), whose sum is σ = 812426112. Its totient is φ = 51173376.

The previous prime is 223890239. The next prime is 223890253. The reversal of 223890240 is 42098322.

It is a tau number, because it is divible by the number of its divisors (112).

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

It is a junction number, because it is equal to n+sod(n) for n = 223890198 and 223890207.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9939 + ... + 23378.

Almost surely, 2^223890240 is an apocalyptic number.

223890240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223890240 is an abundant number, since it is smaller than the sum of its proper divisors (588535872).

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

223890240 is a wasteful number, since it uses less digits than its factorization.

223890240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33344 (or 33334 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 223890240 is about 14962.9622735607. The cubic root of 223890240 is about 607.2185829291.

The spelling of 223890240 in words is "two hundred twenty-three million, eight hundred ninety thousand, two hundred forty".