223278252 has 24 divisors (see below), whose sum is σ = 521841600. Its totient is φ = 74303376.

The previous prime is 223278203. The next prime is 223278269. The reversal of 223278252 is 252872322.

It is a happy number.

It is a super-3 number, since 3×223278252³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7602 + ... + 22457.

It is an arithmetic number, because the mean of its divisors is an integer number (21743400).

Almost surely, 2^223278252 is an apocalyptic number.

It is an amenable number.

223278252 is an abundant number, since it is smaller than the sum of its proper divisors (298563348).

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

223278252 is a wasteful number, since it uses less digits than its factorization.

223278252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30685 (or 30683 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 223278252 is about 14942.4981847079. The cubic root of 223278252 is about 606.6648151670.

The spelling of 223278252 in words is "two hundred twenty-three million, two hundred seventy-eight thousand, two hundred fifty-two".