494643140 has 24 divisors (see below), whose sum is σ = 1074570840. Its totient is φ = 191034368.

The previous prime is 494643139. The next prime is 494643167. The reversal of 494643140 is 41346494.

It can be written as a sum of positive squares in 4 ways, for example, as 47997184 + 446645956 = 6928^2 + 21134^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 494643140.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425837 + ... + 426996.

It is an arithmetic number, because the mean of its divisors is an integer number (44773785).

Almost surely, 2^494643140 is an apocalyptic number.

It is an amenable number.

494643140 is an abundant number, since it is smaller than the sum of its proper divisors (579927700).

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

494643140 is a wasteful number, since it uses less digits than its factorization.

494643140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852871 (or 852869 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 494643140 is about 22240.5741832355. The cubic root of 494643140 is about 790.8558475710.

The spelling of 494643140 in words is "four hundred ninety-four million, six hundred forty-three thousand, one hundred forty".