489958226 has 4 divisors (see below), whose sum is σ = 734937342. Its totient is φ = 244979112.

The previous prime is 489958223. The next prime is 489958267. The reversal of 489958226 is 622859984.

It is a Cunningham number, because it is equal to 22135²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 489958225 + 1 = 22135^2 + 1^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (489958223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122489555 + ... + 122489558.

Almost surely, 2^489958226 is an apocalyptic number.

489958226 is a deficient number, since it is larger than the sum of its proper divisors (244979116).

489958226 is a wasteful number, since it uses less digits than its factorization.

489958226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244979115.

The product of its digits is 2488320, while the sum is 53.

The square root of 489958226 is about 22135.0000225887. Note that the first 4 decimals coincide. The cubic root of 489958226 is about 788.3511119219.

The spelling of 489958226 in words is "four hundred eighty-nine million, nine hundred fifty-eight thousand, two hundred twenty-six".