223082388 has 18 divisors (see below), whose sum is σ = 563902794. Its totient is φ = 74360784.

The previous prime is 223082371. The next prime is 223082407. The reversal of 223082388 is 883280322.

It can be written as a sum of positive squares in only one way, i.e., 214856964 + 8225424 = 14658^2 + 2868^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×223082388³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 6196733 = 223082388 / (2 + 2 + 3 + 0 + 8 + 2 + 3 + 8 + 8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3098331 + ... + 3098402.

It is an arithmetic number, because the mean of its divisors is an integer number (31327933).

Almost surely, 2^223082388 is an apocalyptic number.

It is an amenable number.

223082388 is an abundant number, since it is smaller than the sum of its proper divisors (340820406).

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

223082388 is a wasteful number, since it uses less digits than its factorization.

223082388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6196743 (or 6196738 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 223082388 is about 14935.9428226008. The cubic root of 223082388 is about 606.4873705688.

The spelling of 223082388 in words is "two hundred twenty-three million, eighty-two thousand, three hundred eighty-eight".