505439000 has 64 divisors (see below), whose sum is σ = 1290276000. Its totient is φ = 183792000.

The previous prime is 505438991. The next prime is 505439009. The reversal of 505439000 is 934505.

It is an interprime number because it is at equal distance from previous prime (505438991) and next prime (505439009).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505439009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11975 + ... + 33974.

Almost surely, 2^505439000 is an apocalyptic number.

505439000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

505439000 is an abundant number, since it is smaller than the sum of its proper divisors (784837000).

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

505439000 is a wasteful number, since it uses less digits than its factorization.

505439000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45981 (or 45967 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 505439000 is about 22481.9705542019. The cubic root of 505439000 is about 796.5681112266.

The spelling of 505439000 in words is "five hundred five million, four hundred thirty-nine thousand".