490492820 has 24 divisors (see below), whose sum is σ = 1037903328. Its totient is φ = 194698400.

The previous prime is 490492817. The next prime is 490492843. The reversal of 490492820 is 28294094.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90986 + ... + 96225.

It is an arithmetic number, because the mean of its divisors is an integer number (43245972).

Almost surely, 2^490492820 is an apocalyptic number.

It is an amenable number.

490492820 is an abundant number, since it is smaller than the sum of its proper divisors (547410508).

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

490492820 is a wasteful number, since it uses less digits than its factorization.

490492820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187351 (or 187349 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 490492820 is about 22147.0724927698. The cubic root of 490492820 is about 788.6377313139.

The spelling of 490492820 in words is "four hundred ninety million, four hundred ninety-two thousand, eight hundred twenty".