1889279222 has 4 divisors (see below), whose sum is σ = 2833918836. Its totient is φ = 944639610.

The previous prime is 1889279213. The next prime is 1889279239. The reversal of 1889279222 is 2229729881.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2229729881 = 1459 ⋅1528259.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472319804 + ... + 472319807.

It is an arithmetic number, because the mean of its divisors is an integer number (708479709).

Almost surely, 2^1889279222 is an apocalyptic number.

1889279222 is a deficient number, since it is larger than the sum of its proper divisors (944639614).

1889279222 is an equidigital number, since it uses as much as digits as its factorization.

1889279222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944639613.

The product of its digits is 580608, while the sum is 50.

The square root of 1889279222 is about 43465.8397135038. The cubic root of 1889279222 is about 1236.2283989651.

The spelling of 1889279222 in words is "one billion, eight hundred eighty-nine million, two hundred seventy-nine thousand, two hundred twenty-two".