500400340 has 72 divisors (see below), whose sum is σ = 1215960480. Its totient is φ = 172370880.

The previous prime is 500400337. The next prime is 500400349. The reversal of 500400340 is 43004005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500400349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40539 + ... + 51421.

It is an arithmetic number, because the mean of its divisors is an integer number (16888340).

Almost surely, 2^500400340 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 500400340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (607980240).

500400340 is an abundant number, since it is smaller than the sum of its proper divisors (715560140).

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

500400340 is a wasteful number, since it uses less digits than its factorization.

500400340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10933 (or 10920 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 500400340 is about 22369.6298583593. The cubic root of 500400340 is about 793.9123028514.

Adding to 500400340 its reverse (43004005), we get a palindrome (543404345).

The spelling of 500400340 in words is "five hundred million, four hundred thousand, three hundred forty".