2625440320 has 28 divisors (see below), whose sum is σ = 6251830524. Its totient is φ = 1050176000.

The previous prime is 2625440291. The next prime is 2625440329. The reversal of 2625440320 is 230445262.

It can be written as a sum of positive squares in 2 ways, for example, as 394578496 + 2230861824 = 19864^2 + 47232^2 .

It is not an unprimeable number, because it can be changed into a prime (2625440329) 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 3 ways as a sum of consecutive naturals, for example, 4101931 + ... + 4102570.

Almost surely, 2^2625440320 is an apocalyptic number.

2625440320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2625440320 is an abundant number, since it is smaller than the sum of its proper divisors (3626390204).

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

2625440320 is an equidigital number, since it uses as much as digits as its factorization.

2625440320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8204518 (or 8204508 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 2625440320 is about 51239.0507328151. The cubic root of 2625440320 is about 1379.5392146398.

Adding to 2625440320 its reverse (230445262), we get a palindrome (2855885582).

The spelling of 2625440320 in words is "two billion, six hundred twenty-five million, four hundred forty thousand, three hundred twenty".