2625394240 has 224 divisors, whose sum is σ = 7412638464. Its totient is φ = 867041280.

The previous prime is 2625394229. The next prime is 2625394249. The reversal of 2625394240 is 424935262.

It is a tau number, because it is divible by the number of its divisors (224).

It is a self number, because there is not a number n which added to its sum of digits gives 2625394240.

It is not an unprimeable number, because it can be changed into a prime (2625394249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9342900 + ... + 9343180.

It is an arithmetic number, because the mean of its divisors is an integer number (33092136).

Almost surely, 2^2625394240 is an apocalyptic number.

2625394240 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 2625394240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3706319232).

2625394240 is an abundant number, since it is smaller than the sum of its proper divisors (4787244224).

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

2625394240 is a wasteful number, since it uses less digits than its factorization.

2625394240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 2625394240 is about 51238.6010737998. The cubic root of 2625394240 is about 1379.5311436712.

The spelling of 2625394240 in words is "two billion, six hundred twenty-five million, three hundred ninety-four thousand, two hundred forty".