494823840 has 384 divisors, whose sum is σ = 1962455040. Its totient is φ = 102187008.

The previous prime is 494823803. The next prime is 494823853. The reversal of 494823840 is 48328494.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 494823792 and 494823801.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1468152 + ... + 1468488.

It is an arithmetic number, because the mean of its divisors is an integer number (5110560).

Almost surely, 2^494823840 is an apocalyptic number.

494823840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 494823840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (981227520).

494823840 is an abundant number, since it is smaller than the sum of its proper divisors (1467631200).

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

494823840 is a wasteful number, since it uses less digits than its factorization.

494823840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 494823840 is about 22244.6362074096. The cubic root of 494823840 is about 790.9521393833.

The spelling of 494823840 in words is "four hundred ninety-four million, eight hundred twenty-three thousand, eight hundred forty".