223409473 has 12 divisors (see below), whose sum is σ = 262319472. Its totient is φ = 189699720.

The previous prime is 223409449. The next prime is 223409479. The reversal of 223409473 is 374904322.

It is a happy number.

It is not a de Polignac number, because 223409473 - 2¹³ = 223401281 is a prime.

It is a super-2 number, since 2×223409473² = 99823585252275458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223409479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16063 + ... + 26548.

It is an arithmetic number, because the mean of its divisors is an integer number (21859956).

Almost surely, 2^223409473 is an apocalyptic number.

It is an amenable number.

223409473 is a deficient number, since it is larger than the sum of its proper divisors (38909999).

223409473 is a wasteful number, since it uses less digits than its factorization.

223409473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42732 (or 42725 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 223409473 is about 14946.8884052836. Note that the first 3 decimals coincide. The cubic root of 223409473 is about 606.7836378661.

It can be divided in two parts, 22340 and 9473, that added together give a palindrome (31813).

The spelling of 223409473 in words is "two hundred twenty-three million, four hundred nine thousand, four hundred seventy-three".