489157822 has 4 divisors (see below), whose sum is σ = 733736736. Its totient is φ = 244578910.

The previous prime is 489157817. The next prime is 489157843. The reversal of 489157822 is 228751984.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122289454 + ... + 122289457.

It is an arithmetic number, because the mean of its divisors is an integer number (183434184).

Almost surely, 2^489157822 is an apocalyptic number.

489157822 is a deficient number, since it is larger than the sum of its proper divisors (244578914).

489157822 is a wasteful number, since it uses less digits than its factorization.

489157822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244578913.

The product of its digits is 322560, while the sum is 46.

The square root of 489157822 is about 22116.9125783867. The cubic root of 489157822 is about 787.9215900663.

The spelling of 489157822 in words is "four hundred eighty-nine million, one hundred fifty-seven thousand, eight hundred twenty-two".