505243432 has 16 divisors (see below), whose sum is σ = 963388800. Its totient is φ = 248339760.

The previous prime is 505243429. The next prime is 505243469. The reversal of 505243432 is 234342505.

It is a self number, because there is not a number n which added to its sum of digits gives 505243432.

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, 534744 + ... + 535687.

It is an arithmetic number, because the mean of its divisors is an integer number (60211800).

Almost surely, 2^505243432 is an apocalyptic number.

It is an amenable number.

505243432 is a deficient number, since it is larger than the sum of its proper divisors (458145368).

505243432 is a wasteful number, since it uses less digits than its factorization.

505243432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070496 (or 1070492 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 505243432 is about 22477.6206925911. The cubic root of 505243432 is about 796.4653600677.

Adding to 505243432 its reverse (234342505), we get a palindrome (739585937).

It can be divided in two parts, 50524 and 3432, that added together give a triangular number (53956 = T₃₂₈).

The spelling of 505243432 in words is "five hundred five million, two hundred forty-three thousand, four hundred thirty-two".