505140630 has 32 divisors (see below), whose sum is σ = 1212979968. Its totient is φ = 134632800.

The previous prime is 505140619. The next prime is 505140641. The reversal of 505140630 is 36041505.

It is an interprime number because it is at equal distance from previous prime (505140619) and next prime (505140641).

It is a self number, because there is not a number n which added to its sum of digits gives 505140630.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78225 + ... + 84435.

It is an arithmetic number, because the mean of its divisors is an integer number (37905624).

Almost surely, 2^505140630 is an apocalyptic number.

505140630 is an abundant number, since it is smaller than the sum of its proper divisors (707839338).

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

505140630 is a wasteful number, since it uses less digits than its factorization.

505140630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8932.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 505140630 is about 22475.3338128714. Note that the first 3 decimals coincide. The cubic root of 505140630 is about 796.4113374055.

The spelling of 505140630 in words is "five hundred five million, one hundred forty thousand, six hundred thirty".