223221464 has 16 divisors (see below), whose sum is σ = 419973120. Its totient is φ = 111228640.

The previous prime is 223221461. The next prime is 223221473. The reversal of 223221464 is 464122322.

It is a happy number.

223221464 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×223221464³ (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 (223221461) 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, 45272 + ... + 49959.

It is an arithmetic number, because the mean of its divisors is an integer number (26248320).

Almost surely, 2^223221464 is an apocalyptic number.

It is an amenable number.

223221464 is a deficient number, since it is larger than the sum of its proper divisors (196751656).

223221464 is a wasteful number, since it uses less digits than its factorization.

223221464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95530 (or 95526 counting only the distinct ones).

The product of its digits is 4608, while the sum is 26.

The square root of 223221464 is about 14940.5978461372. The cubic root of 223221464 is about 606.6133782978.

Adding to 223221464 its reverse (464122322), we get a palindrome (687343786).

The spelling of 223221464 in words is "two hundred twenty-three million, two hundred twenty-one thousand, four hundred sixty-four".