222473556 has 18 divisors (see below), whose sum is σ = 562363802. Its totient is φ = 74157840.

The previous prime is 222473533. The next prime is 222473557. The reversal of 222473556 is 655374222.

It can be written as a sum of positive squares in only one way, i.e., 152917956 + 69555600 = 12366^2 + 8340^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 6179821 = 222473556 / (2 + 2 + 2 + 4 + 7 + 3 + 5 + 5 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 222473556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222473557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3089875 + ... + 3089946.

Almost surely, 2^222473556 is an apocalyptic number.

It is an amenable number.

222473556 is an abundant number, since it is smaller than the sum of its proper divisors (339890246).

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

222473556 is a wasteful number, since it uses less digits than its factorization.

222473556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6179831 (or 6179826 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 222473556 is about 14915.5474589436. The cubic root of 222473556 is about 605.9351301343.

The spelling of 222473556 in words is "two hundred twenty-two million, four hundred seventy-three thousand, five hundred fifty-six".