222973890 has 32 divisors (see below), whose sum is σ = 535752576. Its totient is φ = 59391360.

The previous prime is 222973889. The next prime is 222973897. The reversal of 222973890 is 98379222.

222973890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222973897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25710 + ... + 33270.

It is an arithmetic number, because the mean of its divisors is an integer number (16742268).

Almost surely, 2^222973890 is an apocalyptic number.

222973890 is an abundant number, since it is smaller than the sum of its proper divisors (312778686).

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

222973890 is a wasteful number, since it uses less digits than its factorization.

222973890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8554.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 222973890 is about 14932.3102700152. The cubic root of 222973890 is about 606.3890312092.

The spelling of 222973890 in words is "two hundred twenty-two million, nine hundred seventy-three thousand, eight hundred ninety".