509326044 has 48 divisors (see below), whose sum is σ = 1203417600. Its totient is φ = 167645376.

The previous prime is 509326031. The next prime is 509326079. The reversal of 509326044 is 440623905.

It is a junction number, because it is equal to n+sod(n) for n = 509325996 and 509326014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 573769 + ... + 574655.

It is an arithmetic number, because the mean of its divisors is an integer number (25071200).

Almost surely, 2^509326044 is an apocalyptic number.

It is an amenable number.

509326044 is an abundant number, since it is smaller than the sum of its proper divisors (694091556).

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

509326044 is a wasteful number, since it uses less digits than its factorization.

509326044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442 (or 1440 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 509326044 is about 22568.2530116976. The cubic root of 509326044 is about 798.6048830585.

Adding to 509326044 its reverse (440623905), we get a palindrome (949949949).

The spelling of 509326044 in words is "five hundred nine million, three hundred twenty-six thousand, forty-four".