223390406 has 8 divisors (see below), whose sum is σ = 335618544. Its totient is φ = 111517560.

The previous prime is 223390397. The next prime is 223390441. The reversal of 223390406 is 604093322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 87245 + ... + 89768.

It is an arithmetic number, because the mean of its divisors is an integer number (41952318).

Almost surely, 2^223390406 is an apocalyptic number.

223390406 is a deficient number, since it is larger than the sum of its proper divisors (112228138).

223390406 is a wasteful number, since it uses less digits than its factorization.

223390406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177646.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 223390406 is about 14946.2505666137. The cubic root of 223390406 is about 606.7663752845.

The spelling of 223390406 in words is "two hundred twenty-three million, three hundred ninety thousand, four hundred six".