493885381 has 8 divisors (see below), whose sum is σ = 540883584. Its totient is φ = 447237120.

The previous prime is 493885367. The next prime is 493885391. The reversal of 493885381 is 183588394.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 493885381 - 2⁵ = 493885349 is a prime.

It is a super-2 number, since 2×493885381² = 487845539131030322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493885321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84525 + ... + 90178.

It is an arithmetic number, because the mean of its divisors is an integer number (67610448).

Almost surely, 2^493885381 is an apocalyptic number.

It is an amenable number.

493885381 is a deficient number, since it is larger than the sum of its proper divisors (46998203).

493885381 is a wasteful number, since it uses less digits than its factorization.

493885381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174971.

The product of its digits is 829440, while the sum is 49.

The square root of 493885381 is about 22223.5321450034. The cubic root of 493885381 is about 790.4517957298.

The spelling of 493885381 in words is "four hundred ninety-three million, eight hundred eighty-five thousand, three hundred eighty-one".