491089832 has 8 divisors (see below), whose sum is σ = 920793450. Its totient is φ = 245544912.

The previous prime is 491089777. The next prime is 491089843. The reversal of 491089832 is 238980194.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 355925956 + 135163876 = 18866^2 + 11626^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30693107 + ... + 30693122.

Almost surely, 2^491089832 is an apocalyptic number.

It is an amenable number.

491089832 is a deficient number, since it is larger than the sum of its proper divisors (429703618).

491089832 is a wasteful number, since it uses less digits than its factorization.

491089832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61386235 (or 61386231 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 491089832 is about 22160.5467441577. The cubic root of 491089832 is about 788.9575696984.

The spelling of 491089832 in words is "four hundred ninety-one million, eighty-nine thousand, eight hundred thirty-two".