223203988 has 24 divisors (see below), whose sum is σ = 454833792. Its totient is φ = 93853344.

The previous prime is 223203977. The next prime is 223203989. The reversal of 223203988 is 889302322.

It is a happy number.

223203988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×223203988³ (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 (223203989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73720 + ... + 76687.

It is an arithmetic number, because the mean of its divisors is an integer number (18951408).

Almost surely, 2^223203988 is an apocalyptic number.

223203988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

223203988 is an abundant number, since it is smaller than the sum of its proper divisors (231629804).

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

223203988 is a wasteful number, since it uses less digits than its factorization.

223203988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150471 (or 150469 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 223203988 is about 14940.0129852688. The cubic root of 223203988 is about 606.5975473052.

The spelling of 223203988 in words is "two hundred twenty-three million, two hundred three thousand, nine hundred eighty-eight".