494258856 has 256 divisors, whose sum is σ = 1643980800. Its totient is φ = 120185856.

The previous prime is 494258797. The next prime is 494258857. The reversal of 494258856 is 658852494.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 494258799 and 494258808.

It is not an unprimeable number, because it can be changed into a prime (494258857) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1784190 + ... + 1784466.

It is an arithmetic number, because the mean of its divisors is an integer number (6421800).

Almost surely, 2^494258856 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 494258856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (821990400).

494258856 is an abundant number, since it is smaller than the sum of its proper divisors (1149721944).

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

494258856 is a wasteful number, since it uses less digits than its factorization.

494258856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368 (or 364 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 51.

The square root of 494258856 is about 22231.9332492701. The cubic root of 494258856 is about 790.6509914768.

The spelling of 494258856 in words is "four hundred ninety-four million, two hundred fifty-eight thousand, eight hundred fifty-six".