223149204 has 36 divisors (see below), whose sum is σ = 565719700. Its totient is φ = 74165760.

The previous prime is 223149181. The next prime is 223149209. The reversal of 223149204 is 402941322.

It can be written as a sum of positive squares in 2 ways, for example, as 122146704 + 101002500 = 11052^2 + 10050^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×223149204³ (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 (223149209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3684 + ... + 21444.

Almost surely, 2^223149204 is an apocalyptic number.

It is an amenable number.

223149204 is an abundant number, since it is smaller than the sum of its proper divisors (342570496).

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

223149204 is a wasteful number, since it uses less digits than its factorization.

223149204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18120 (or 18115 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 223149204 is about 14938.1794071433. The cubic root of 223149204 is about 606.5479147403.

The spelling of 223149204 in words is "two hundred twenty-three million, one hundred forty-nine thousand, two hundred four".