489821094 has 160 divisors (see below), whose sum is σ = 1305708096. Its totient is φ = 134369280.

The previous prime is 489821081. The next prime is 489821117. The reversal of 489821094 is 490128984.

489821094 is a `hidden beast` number, since 489 + 82 + 1 + 0 + 94 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5049654 + ... + 5049750.

Almost surely, 2^489821094 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489821094, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (652854048).

489821094 is an abundant number, since it is smaller than the sum of its proper divisors (815887002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489821094 is a wasteful number, since it uses less digits than its factorization.

489821094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 489821094 is about 22131.9021776259. The cubic root of 489821094 is about 788.2775558196.

The spelling of 489821094 in words is "four hundred eighty-nine million, eight hundred twenty-one thousand, ninety-four".