503640486 has 72 divisors (see below), whose sum is σ = 1160785080. Its totient is φ = 157790592.

The previous prime is 503640479. The next prime is 503640493. The reversal of 503640486 is 684046305.

503640486 is a `hidden beast` number, since 5 + 0 + 3 + 640 + 4 + 8 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (503640479) and next prime (503640493).

It is a super-3 number, since 3×503640486³ (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 503640486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1162926 + ... + 1163358.

It is an arithmetic number, because the mean of its divisors is an integer number (16122015).

Almost surely, 2^503640486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 503640486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (580392540).

503640486 is an abundant number, since it is smaller than the sum of its proper divisors (657144594).

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

503640486 is a wasteful number, since it uses less digits than its factorization.

503640486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 503640486 is about 22441.9358790636. The cubic root of 503640486 is about 795.6221734510.

The spelling of 503640486 in words is "five hundred three million, six hundred forty thousand, four hundred eighty-six".