493444836 has 72 divisors (see below), whose sum is σ = 1267844760. Its totient is φ = 161796096.

The previous prime is 493444781. The next prime is 493444843. The reversal of 493444836 is 638444394.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 46376100 + 447068736 = 6810^2 + 21144^2 .

It is a junction number, because it is equal to n+sod(n) for n = 493444791 and 493444800.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1079520 + ... + 1079976.

It is an arithmetic number, because the mean of its divisors is an integer number (17608955).

Almost surely, 2^493444836 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 493444836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (633922380).

493444836 is an abundant number, since it is smaller than the sum of its proper divisors (774399924).

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

493444836 is a wasteful number, since it uses less digits than its factorization.

493444836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893 (or 888 counting only the distinct ones).

The product of its digits is 995328, while the sum is 45.

The square root of 493444836 is about 22213.6182554756. The cubic root of 493444836 is about 790.2166985519.

It can be divided in two parts, 4934 and 44836, that added together give a triangular number (49770 = T₃₁₅).

The spelling of 493444836 in words is "four hundred ninety-three million, four hundred forty-four thousand, eight hundred thirty-six".