223042406 has 12 divisors (see below), whose sum is σ = 353100132. Its totient is φ = 105651324.

The previous prime is 223042381. The next prime is 223042433. The reversal of 223042406 is 604240322.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 153740 + ... + 155183.

It is an arithmetic number, because the mean of its divisors is an integer number (29425011).

Almost surely, 2^223042406 is an apocalyptic number.

223042406 is a deficient number, since it is larger than the sum of its proper divisors (130057726).

223042406 is a wasteful number, since it uses less digits than its factorization.

223042406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308963 (or 308944 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 223042406 is about 14934.6043134728. The cubic root of 223042406 is about 606.4511357841.

Adding to 223042406 its reverse (604240322), we get a palindrome (827282728).

The spelling of 223042406 in words is "two hundred twenty-three million, forty-two thousand, four hundred six".