493349178 has 64 divisors (see below), whose sum is σ = 1153797120. Its totient is φ = 137728512.

The previous prime is 493349167. The next prime is 493349183. The reversal of 493349178 is 871943394.

It is a happy number.

It is a super-2 number, since 2×493349178² = 486786822866551368, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 337413 + ... + 338871.

It is an arithmetic number, because the mean of its divisors is an integer number (18028080).

Almost surely, 2^493349178 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 493349178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (576898560).

493349178 is an abundant number, since it is smaller than the sum of its proper divisors (660447942).

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

493349178 is a wasteful number, since it uses less digits than its factorization.

493349178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651.

The product of its digits is 653184, while the sum is 48.

The square root of 493349178 is about 22211.4650124660. The cubic root of 493349178 is about 790.1656320979.

The spelling of 493349178 in words is "four hundred ninety-three million, three hundred forty-nine thousand, one hundred seventy-eight".