223166406 has 16 divisors (see below), whose sum is σ = 446612544. Its totient is φ = 74342184.

The previous prime is 223166399. The next prime is 223166407. The reversal of 223166406 is 604661322.

223166406 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×223166406³ (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 (223166407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456 + ... + 21131.

It is an arithmetic number, because the mean of its divisors is an integer number (27913284).

Almost surely, 2^223166406 is an apocalyptic number.

223166406 is an abundant number, since it is smaller than the sum of its proper divisors (223446138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223166406 is a wasteful number, since it uses less digits than its factorization.

223166406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23315.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 223166406 is about 14938.7551690226. The cubic root of 223166406 is about 606.5635000810.

The spelling of 223166406 in words is "two hundred twenty-three million, one hundred sixty-six thousand, four hundred six".