506840440 has 32 divisors (see below), whose sum is σ = 1143866160. Its totient is φ = 202118400.

The previous prime is 506840437. The next prime is 506840471. The reversal of 506840440 is 44048605.

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, 5901 + ... + 32380.

Almost surely, 2^506840440 is an apocalyptic number.

It is an amenable number.

506840440 is an abundant number, since it is smaller than the sum of its proper divisors (637025720).

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

506840440 is a wasteful number, since it uses less digits than its factorization.

506840440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38623 (or 38619 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 506840440 is about 22513.1170653910. The cubic root of 506840440 is about 797.3036515077.

The spelling of 506840440 in words is "five hundred six million, eight hundred forty thousand, four hundred forty".