505140032 has 28 divisors (see below), whose sum is σ = 1021307076. Its totient is φ = 247802880.

The previous prime is 505140029. The next prime is 505140037. The reversal of 505140032 is 230041505.

It can be written as a sum of positive squares in 2 ways, for example, as 321700096 + 183439936 = 17936^2 + 13544^2 .

It is a super-2 number, since 2×505140032² = 510332903857922048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 505139986 and 505140013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505140037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71069 + ... + 77852.

Almost surely, 2^505140032 is an apocalyptic number.

It is an amenable number.

505140032 is an abundant number, since it is smaller than the sum of its proper divisors (516167044).

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

505140032 is a wasteful number, since it uses less digits than its factorization.

505140032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148986 (or 148976 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 505140032 is about 22475.3205093943. The cubic root of 505140032 is about 796.4110231338.

Adding to 505140032 its reverse (230041505), we get a palindrome (735181537).

The spelling of 505140032 in words is "five hundred five million, one hundred forty thousand, thirty-two".