494963820 has 216 divisors, whose sum is σ = 1661836176. Its totient is φ = 119149056.

The previous prime is 494963809. The next prime is 494963893. The reversal of 494963820 is 28369494.

494963820 is a `hidden beast` number, since 4 + 9 + 4 + 9 + 638 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1612107 + ... + 1612413.

It is an arithmetic number, because the mean of its divisors is an integer number (7693686).

Almost surely, 2^494963820 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 494963820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (830918088).

494963820 is an abundant number, since it is smaller than the sum of its proper divisors (1166872356).

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

494963820 is a wasteful number, since it uses less digits than its factorization.

494963820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 494963820 is about 22247.7823613950. The cubic root of 494963820 is about 791.0267161201.

The spelling of 494963820 in words is "four hundred ninety-four million, nine hundred sixty-three thousand, eight hundred twenty".