1989226 has 8 divisors (see below), whose sum is σ = 3086820. Its totient is φ = 960288.

The previous prime is 1989217. The next prime is 1989233. The reversal of 1989226 is 6229891.

It can be written as a sum of positive squares in 2 ways, for example, as 1825201 + 164025 = 1351^2 + 405^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17091 + ... + 17206.

2^1989226 is an apocalyptic number.

1989226 is a deficient number, since it is larger than the sum of its proper divisors (1097594).

1989226 is a wasteful number, since it uses less digits than its factorization.

1989226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34328.

The product of its digits is 15552, while the sum is 37.

The square root of 1989226 is about 1410.3992342596. The cubic root of 1989226 is about 125.7654576948.

The spelling of 1989226 in words is "one million, nine hundred eighty-nine thousand, two hundred twenty-six".