222018744 has 16 divisors (see below), whose sum is σ = 555046920. Its totient is φ = 74006240.

The previous prime is 222018739. The next prime is 222018767. The reversal of 222018744 is 447810222.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4625367 + ... + 4625414.

Almost surely, 2^222018744 is an apocalyptic number.

222018744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

222018744 is an abundant number, since it is smaller than the sum of its proper divisors (333028176).

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

222018744 is a wasteful number, since it uses less digits than its factorization.

222018744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9250790 (or 9250786 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 222018744 is about 14900.2934199297. The cubic root of 222018744 is about 605.5219355886.

Adding to 222018744 its reverse (447810222), we get a palindrome (669828966).

The spelling of 222018744 in words is "two hundred twenty-two million, eighteen thousand, seven hundred forty-four".