223442436 has 24 divisors (see below), whose sum is σ = 595846720. Its totient is φ = 63840672.

The previous prime is 223442393. The next prime is 223442437. The reversal of 223442436 is 634244322.

It is a super-2 number, since 2×223442436² = 99853044411228192, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (223442437) 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, 1329931 + ... + 1330098.

Almost surely, 2^223442436 is an apocalyptic number.

It is an amenable number.

223442436 is an abundant number, since it is smaller than the sum of its proper divisors (372404284).

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

223442436 is a wasteful number, since it uses less digits than its factorization.

223442436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2660043 (or 2660041 counting only the distinct ones).

The product of its digits is 27648, while the sum is 30.

The square root of 223442436 is about 14947.9910355874. The cubic root of 223442436 is about 606.8134790738.

Adding to 223442436 its reverse (634244322), we get a palindrome (857686758).

The spelling of 223442436 in words is "two hundred twenty-three million, four hundred forty-two thousand, four hundred thirty-six".