505140432 has 20 divisors (see below), whose sum is σ = 1304946240. Its totient is φ = 168380128.

The previous prime is 505140347. The next prime is 505140463. The reversal of 505140432 is 234041505.

It is a super-2 number, since 2×505140432² = 510333712082293248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5261832 + ... + 5261927.

It is an arithmetic number, because the mean of its divisors is an integer number (65247312).

Almost surely, 2^505140432 is an apocalyptic number.

It is an amenable number.

505140432 is an abundant number, since it is smaller than the sum of its proper divisors (799805808).

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

505140432 is a wasteful number, since it uses less digits than its factorization.

505140432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10523770 (or 10523764 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 505140432 is about 22475.3294080421. The cubic root of 505140432 is about 796.4112333490.

Adding to 505140432 its reverse (234041505), we get a palindrome (739181937).

The spelling of 505140432 in words is "five hundred five million, one hundred forty thousand, four hundred thirty-two".