509622040 has 64 divisors (see below), whose sum is σ = 1200614400. Its totient is φ = 194316672.

The previous prime is 509622031. The next prime is 509622041. The reversal of 509622040 is 40226905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509622041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329509 + ... + 331051.

It is an arithmetic number, because the mean of its divisors is an integer number (18759600).

Almost surely, 2^509622040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 509622040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (600307200).

509622040 is an abundant number, since it is smaller than the sum of its proper divisors (690992360).

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

509622040 is a wasteful number, since it uses less digits than its factorization.

509622040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1936 (or 1932 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 509622040 is about 22574.8098552347. The cubic root of 509622040 is about 798.7595567866.

Adding to 509622040 its reverse (40226905), we get a palindrome (549848945).

The spelling of 509622040 in words is "five hundred nine million, six hundred twenty-two thousand, forty".