223406446 has 16 divisors (see below), whose sum is σ = 354301200. Its totient is φ = 105357888.

The previous prime is 223406441. The next prime is 223406497. The reversal of 223406446 is 644604322.

It is a super-2 number, since 2×223406446² = 99820880228701832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223406441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4135 + ... + 21538.

It is an arithmetic number, because the mean of its divisors is an integer number (22143825).

Almost surely, 2^223406446 is an apocalyptic number.

223406446 is a deficient number, since it is larger than the sum of its proper divisors (130894754).

223406446 is a wasteful number, since it uses less digits than its factorization.

223406446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25923.

The product of its (nonzero) digits is 27648, while the sum is 31.

The square root of 223406446 is about 14946.7871464071. The cubic root of 223406446 is about 606.7808973939.

The spelling of 223406446 in words is "two hundred twenty-three million, four hundred six thousand, four hundred forty-six".