493485138 has 24 divisors (see below), whose sum is σ = 1125493200. Its totient is φ = 155837304.

The previous prime is 493485137. The next prime is 493485149. The reversal of 493485138 is 831584394.

493485138 is a `hidden beast` number, since 4 + 93 + 48 + 513 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 493485093 and 493485102.

It is not an unprimeable number, because it can be changed into a prime (493485131) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 721128 + ... + 721811.

It is an arithmetic number, because the mean of its divisors is an integer number (46895550).

Almost surely, 2^493485138 is an apocalyptic number.

493485138 is an abundant number, since it is smaller than the sum of its proper divisors (632008062).

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

493485138 is a wasteful number, since it uses less digits than its factorization.

493485138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442966 (or 1442963 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 493485138 is about 22214.5253831812. The cubic root of 493485138 is about 790.2382115587.

The spelling of 493485138 in words is "four hundred ninety-three million, four hundred eighty-five thousand, one hundred thirty-eight".