223681441 has 4 divisors (see below), whose sum is σ = 225290800. Its totient is φ = 222072084.

The previous prime is 223681439. The next prime is 223681457. The reversal of 223681441 is 144186322.

223681441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 223681441 - 2¹ = 223681439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223681421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 804471 + ... + 804748.

It is an arithmetic number, because the mean of its divisors is an integer number (56322700).

Almost surely, 2^223681441 is an apocalyptic number.

It is an amenable number.

223681441 is a deficient number, since it is larger than the sum of its proper divisors (1609359).

223681441 is a wasteful number, since it uses less digits than its factorization.

223681441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1609358.

The product of its digits is 9216, while the sum is 31.

The square root of 223681441 is about 14955.9834514485. The cubic root of 223681441 is about 607.0297611402.

The spelling of 223681441 in words is "two hundred twenty-three million, six hundred eighty-one thousand, four hundred forty-one".