222888549 has 8 divisors (see below), whose sum is σ = 320045152. Its totient is φ = 137162160.

The previous prime is 222888527. The next prime is 222888551. The reversal of 222888549 is 945888222.

It is a happy number.

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

It is not a de Polignac number, because 222888549 - 2²⁰ = 221839973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222888498 and 222888507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222888569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2857507 + ... + 2857584.

It is an arithmetic number, because the mean of its divisors is an integer number (40005644).

Almost surely, 2^222888549 is an apocalyptic number.

It is an amenable number.

222888549 is a deficient number, since it is larger than the sum of its proper divisors (97156603).

222888549 is a wasteful number, since it uses less digits than its factorization.

222888549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5715107.

The product of its digits is 737280, while the sum is 48.

The square root of 222888549 is about 14929.4524012102. The cubic root of 222888549 is about 606.3116582487.

The spelling of 222888549 in words is "two hundred twenty-two million, eight hundred eighty-eight thousand, five hundred forty-nine".