497140240 has 40 divisors (see below), whose sum is σ = 1174810968. Its totient is φ = 195594240.

The previous prime is 497140219. The next prime is 497140247. The reversal of 497140240 is 42041794.

It can be written as a sum of positive squares in 4 ways, for example, as 9437184 + 487703056 = 3072^2 + 22084^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (497140247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46057 + ... + 55816.

Almost surely, 2^497140240 is an apocalyptic number.

497140240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

497140240 is an abundant number, since it is smaller than the sum of its proper divisors (677670728).

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

497140240 is a wasteful number, since it uses less digits than its factorization.

497140240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101947 (or 101941 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 497140240 is about 22296.6418996225. The cubic root of 497140240 is about 792.1844365210.

The spelling of 497140240 in words is "four hundred ninety-seven million, one hundred forty thousand, two hundred forty".