494218340 has 96 divisors (see below), whose sum is σ = 1315415808. Its totient is φ = 151488000.

The previous prime is 494218313. The next prime is 494218349. The reversal of 494218340 is 43812494.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 494218340.

It is not an unprimeable number, because it can be changed into a prime (494218349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91310 + ... + 96570.

It is an arithmetic number, because the mean of its divisors is an integer number (13702248).

Almost surely, 2^494218340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 494218340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (657707904).

494218340 is an abundant number, since it is smaller than the sum of its proper divisors (821197468).

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

494218340 is a wasteful number, since it uses less digits than its factorization.

494218340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5349 (or 5347 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 494218340 is about 22231.0220187917. The cubic root of 494218340 is about 790.6293868119.

The spelling of 494218340 in words is "four hundred ninety-four million, two hundred eighteen thousand, three hundred forty".