222444890 has 16 divisors (see below), whose sum is σ = 408920832. Its totient is φ = 87084624.

The previous prime is 222444889. The next prime is 222444991. The reversal of 222444890 is 98444222.

222444890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×222444890² = 98963458174224200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222444890.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236174 + ... + 237113.

It is an arithmetic number, because the mean of its divisors is an integer number (25557552).

Almost surely, 2^222444890 is an apocalyptic number.

222444890 is a deficient number, since it is larger than the sum of its proper divisors (186475942).

222444890 is a wasteful number, since it uses less digits than its factorization.

222444890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473341.

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 222444890 is about 14914.5864843783. The cubic root of 222444890 is about 605.9091038462.

The spelling of 222444890 in words is "two hundred twenty-two million, four hundred forty-four thousand, eight hundred ninety".