497571940 has 12 divisors (see below), whose sum is σ = 1044901116. Its totient is φ = 199028768.

The previous prime is 497571931. The next prime is 497571947. The reversal of 497571940 is 49175794.

It can be written as a sum of positive squares in 2 ways, for example, as 259918884 + 237653056 = 16122^2 + 15416^2 .

It is not an unprimeable number, because it can be changed into a prime (497571947) 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 3 ways as a sum of consecutive naturals, for example, 12439279 + ... + 12439318.

It is an arithmetic number, because the mean of its divisors is an integer number (87075093).

Almost surely, 2^497571940 is an apocalyptic number.

It is an amenable number.

497571940 is an abundant number, since it is smaller than the sum of its proper divisors (547329176).

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

497571940 is a wasteful number, since it uses less digits than its factorization.

497571940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24878606 (or 24878604 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 46.

The square root of 497571940 is about 22306.3206289159. The cubic root of 497571940 is about 792.4136723595.

The spelling of 497571940 in words is "four hundred ninety-seven million, five hundred seventy-one thousand, nine hundred forty".