2503440000 has 640 divisors, whose sum is σ = 9878088000. Its totient is φ = 622080000.

The previous prime is 2503439987. The next prime is 2503440011. The reversal of 2503440000 is 443052.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 41039970 + ... + 41040030.

Almost surely, 2^2503440000 is an apocalyptic number.

2503440000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2503440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4939044000).

2503440000 is an abundant number, since it is smaller than the sum of its proper divisors (7374648000).

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

2503440000 is an equidigital number, since it uses as much as digits as its factorization.

2503440000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 2503440000 is about 50034.3881745345. The cubic root of 2503440000 is about 1357.8310294326.

Adding to 2503440000 its reverse (443052), we get a palindrome (2503883052).

The spelling of 2503440000 in words is "two billion, five hundred three million, four hundred forty thousand".