2229191990 has 16 divisors (see below), whose sum is σ = 4050047952. Its totient is φ = 883342944.

The previous prime is 2229191977. The next prime is 2229192013. The reversal of 2229191990 is 991919222.

It is a happy number.

2229191990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 1040609 + ... + 1042748.

It is an arithmetic number, because the mean of its divisors is an integer number (253127997).

Almost surely, 2^2229191990 is an apocalyptic number.

2229191990 is a deficient number, since it is larger than the sum of its proper divisors (1820855962).

2229191990 is a wasteful number, since it uses less digits than its factorization.

2229191990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083471.

The product of its (nonzero) digits is 52488, while the sum is 44.

The square root of 2229191990 is about 47214.3197557690. The cubic root of 2229191990 is about 1306.3187424733.

The spelling of 2229191990 in words is "two billion, two hundred twenty-nine million, one hundred ninety-one thousand, nine hundred ninety".