505140672 has 56 divisors (see below), whose sum is σ = 1338616576. Its totient is φ = 168115968.

The previous prime is 505140661. The next prime is 505140679. The reversal of 505140672 is 276041505.

It is a super-3 number, since 3×505140672³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505140679) 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, 149433 + ... + 152775.

Almost surely, 2^505140672 is an apocalyptic number.

It is an amenable number.

505140672 is an abundant number, since it is smaller than the sum of its proper divisors (833475904).

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

505140672 is a wasteful number, since it uses less digits than its factorization.

505140672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4145 (or 4135 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 505140672 is about 22475.3347472290. The cubic root of 505140672 is about 796.4113594780.

The spelling of 505140672 in words is "five hundred five million, one hundred forty thousand, six hundred seventy-two".