223476381 has 8 divisors (see below), whose sum is σ = 331076160. Its totient is φ = 148984236.

The previous prime is 223476377. The next prime is 223476389. The reversal of 223476381 is 183674322.

It is a happy number.

It is not a de Polignac number, because 223476381 - 2² = 223476377 is a prime.

It is a super-2 number, since 2×223476381² = 99883385729714322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223476389) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4138425 + ... + 4138478.

It is an arithmetic number, because the mean of its divisors is an integer number (41384520).

Almost surely, 2^223476381 is an apocalyptic number.

It is an amenable number.

223476381 is a deficient number, since it is larger than the sum of its proper divisors (107599779).

223476381 is an equidigital number, since it uses as much as digits as its factorization.

223476381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8276912 (or 8276906 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 223476381 is about 14949.1264293269. The cubic root of 223476381 is about 606.8442062131.

The spelling of 223476381 in words is "two hundred twenty-three million, four hundred seventy-six thousand, three hundred eighty-one".