497995840 has 56 divisors (see below), whose sum is σ = 1214807832. Its totient is φ = 194334720.

The previous prime is 497995831. The next prime is 497995843. The reversal of 497995840 is 48599794.

It can be written as a sum of positive squares in 4 ways, for example, as 41062464 + 456933376 = 6408^2 + 21376^2 .

It is not an unprimeable number, because it can be changed into a prime (497995843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5859 + ... + 32098.

It is an arithmetic number, because the mean of its divisors is an integer number (21692997).

Almost surely, 2^497995840 is an apocalyptic number.

497995840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

497995840 is an abundant number, since it is smaller than the sum of its proper divisors (716811992).

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

497995840 is a wasteful number, since it uses less digits than its factorization.

497995840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38015 (or 38005 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 55.

The square root of 497995840 is about 22315.8203971980. The cubic root of 497995840 is about 792.6386373572.

The spelling of 497995840 in words is "four hundred ninety-seven million, nine hundred ninety-five thousand, eight hundred forty".