505887940 has 48 divisors (see below), whose sum is σ = 1075757760. Its totient is φ = 199821440.

The previous prime is 505887911. The next prime is 505887947. The reversal of 505887940 is 49788505.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (505887947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 767331 + ... + 767989.

It is an arithmetic number, because the mean of its divisors is an integer number (22411620).

Almost surely, 2^505887940 is an apocalyptic number.

It is an amenable number.

505887940 is an abundant number, since it is smaller than the sum of its proper divisors (569869820).

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

505887940 is a wasteful number, since it uses less digits than its factorization.

505887940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092 (or 1090 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 46.

The square root of 505887940 is about 22491.9527831622. The cubic root of 505887940 is about 796.8038834702.

The spelling of 505887940 in words is "five hundred five million, eight hundred eighty-seven thousand, nine hundred forty".