493991532 has 18 divisors (see below), whose sum is σ = 1248700908. Its totient is φ = 164663832.

The previous prime is 493991527. The next prime is 493991543. The reversal of 493991532 is 235199394.

493991532 is a `hidden beast` number, since 493 + 9 + 9 + 153 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6860958 + ... + 6861029.

Almost surely, 2^493991532 is an apocalyptic number.

It is an amenable number.

493991532 is an abundant number, since it is smaller than the sum of its proper divisors (754709376).

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

493991532 is a wasteful number, since it uses less digits than its factorization.

493991532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13721997 (or 13721992 counting only the distinct ones).

The product of its digits is 262440, while the sum is 45.

The square root of 493991532 is about 22225.9202734105. The cubic root of 493991532 is about 790.5084223893.

The spelling of 493991532 in words is "four hundred ninety-three million, nine hundred ninety-one thousand, five hundred thirty-two".