506497840 has 40 divisors (see below), whose sum is σ = 1215600768. Its totient is φ = 196062720.

The previous prime is 506497837. The next prime is 506497861. The reversal of 506497840 is 48794605.

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

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, 99637 + ... + 104596.

Almost surely, 2^506497840 is an apocalyptic number.

It is an amenable number.

506497840 is an abundant number, since it is smaller than the sum of its proper divisors (709102928).

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

506497840 is a wasteful number, since it uses less digits than its factorization.

506497840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204277 (or 204271 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 506497840 is about 22505.5068816501. The cubic root of 506497840 is about 797.1239645823.

The spelling of 506497840 in words is "five hundred six million, four hundred ninety-seven thousand, eight hundred forty".