2500340836 has 72 divisors (see below), whose sum is σ = 5321702400. Its totient is φ = 1023684480.

The previous prime is 2500340809. The next prime is 2500340837. The reversal of 2500340836 is 6380430052.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 2500340798 and 2500340807.

It is not an unprimeable number, because it can be changed into a prime (2500340837) 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 23 ways as a sum of consecutive naturals, for example, 477400 + ... + 482608.

Almost surely, 2^2500340836 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 2500340836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2660851200).

2500340836 is an abundant number, since it is smaller than the sum of its proper divisors (2821361564).

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

2500340836 is a wasteful number, since it uses less digits than its factorization.

2500340836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5337 (or 5328 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 2500340836 is about 50003.4082438387. The cubic root of 2500340836 is about 1357.2704835776.

Adding to 2500340836 its reverse (6380430052), we get a palindrome (8880770888).

The spelling of 2500340836 in words is "two billion, five hundred million, three hundred forty thousand, eight hundred thirty-six".