243222466 has 16 divisors (see below), whose sum is σ = 377250048. Its totient is φ = 117486000.

The previous prime is 243222461. The next prime is 243222467. The reversal of 243222466 is 664222342.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (243222461) 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, 36816 + ... + 42916.

It is an arithmetic number, because the mean of its divisors is an integer number (23578128).

Almost surely, 2^243222466 is an apocalyptic number.

243222466 is a deficient number, since it is larger than the sum of its proper divisors (134027582).

243222466 is a wasteful number, since it uses less digits than its factorization.

243222466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6777.

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

The square root of 243222466 is about 15595.5912359872. The cubic root of 243222466 is about 624.2155200780.

The spelling of 243222466 in words is "two hundred forty-three million, two hundred twenty-two thousand, four hundred sixty-six".