222680844 has 18 divisors (see below), whose sum is σ = 562887780. Its totient is φ = 74226936.

The previous prime is 222680831. The next prime is 222680849. The reversal of 222680844 is 448086222.

It is a happy number.

222680844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 6185579 = 222680844 / (2 + 2 + 2 + 6 + 8 + 0 + 8 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 222680799 and 222680808.

It is not an unprimeable number, because it can be changed into a prime (222680849) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3092754 + ... + 3092825.

Almost surely, 2^222680844 is an apocalyptic number.

It is an amenable number.

222680844 is an abundant number, since it is smaller than the sum of its proper divisors (340206936).

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

222680844 is a wasteful number, since it uses less digits than its factorization.

222680844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6185589 (or 6185584 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The square root of 222680844 is about 14922.4945635775. The cubic root of 222680844 is about 606.1232634924.

The spelling of 222680844 in words is "two hundred twenty-two million, six hundred eighty thousand, eight hundred forty-four".