494421828 has 12 divisors (see below), whose sum is σ = 1153650960. Its totient is φ = 164807272.

The previous prime is 494421817. The next prime is 494421847. The reversal of 494421828 is 828124494.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 494421828.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20600898 + ... + 20600921.

It is an arithmetic number, because the mean of its divisors is an integer number (96137580).

Almost surely, 2^494421828 is an apocalyptic number.

It is an amenable number.

494421828 is an abundant number, since it is smaller than the sum of its proper divisors (659229132).

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

494421828 is a wasteful number, since it uses less digits than its factorization.

494421828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41201826 (or 41201824 counting only the distinct ones).

The product of its digits is 147456, while the sum is 42.

The square root of 494421828 is about 22235.5982154742. The cubic root of 494421828 is about 790.7378823924.

The spelling of 494421828 in words is "four hundred ninety-four million, four hundred twenty-one thousand, eight hundred twenty-eight".