507287640 has 32 divisors (see below), whose sum is σ = 1521863280. Its totient is φ = 135276672.

The previous prime is 507287639. The next prime is 507287647. The reversal of 507287640 is 46782705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (507287647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2113579 + ... + 2113818.

Almost surely, 2^507287640 is an apocalyptic number.

It is an amenable number.

507287640 is an abundant number, since it is smaller than the sum of its proper divisors (1014575640).

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

507287640 is a wasteful number, since it uses less digits than its factorization.

507287640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4227411 (or 4227407 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 507287640 is about 22523.0468631577. The cubic root of 507287640 is about 797.5380772758.

The spelling of 507287640 in words is "five hundred seven million, two hundred eighty-seven thousand, six hundred forty".