489358881 has 16 divisors (see below), whose sum is σ = 790883520. Its totient is φ = 296580960.

The previous prime is 489358861. The next prime is 489358907. The reversal of 489358881 is 188853984.

489358881 is a `hidden beast` number, since 489 + 3 + 5 + 88 + 81 = 666.

It is not a de Polignac number, because 489358881 - 2¹⁰ = 489357857 is a prime.

It is a super-2 number, since 2×489358881² = 478944228827144322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (489358861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 823540 + ... + 824133.

It is an arithmetic number, because the mean of its divisors is an integer number (49430220).

Almost surely, 2^489358881 is an apocalyptic number.

It is an amenable number.

489358881 is a deficient number, since it is larger than the sum of its proper divisors (301524639).

489358881 is a wasteful number, since it uses less digits than its factorization.

489358881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1647693 (or 1647687 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 54.

The square root of 489358881 is about 22121.4574791084. The cubic root of 489358881 is about 788.0295286632.

The spelling of 489358881 in words is "four hundred eighty-nine million, three hundred fifty-eight thousand, eight hundred eighty-one".