2597898240 has 288 divisors, whose sum is σ = 10292667840. Its totient is φ = 593657856.

The previous prime is 2597898229. The next prime is 2597898241. The reversal of 2597898240 is 428987952.

2597898240 is a `hidden beast` number, since 2 + 597 + 8 + 9 + 8 + 2 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is not an unprimeable number, because it can be changed into a prime (2597898241) 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, 643107 + ... + 647133.

It is an arithmetic number, because the mean of its divisors is an integer number (35738430).

Almost surely, 2^2597898240 is an apocalyptic number.

2597898240 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 2597898240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5146333920).

2597898240 is an abundant number, since it is smaller than the sum of its proper divisors (7694769600).

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

2597898240 is a wasteful number, since it uses less digits than its factorization.

2597898240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4067 (or 4044 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The square root of 2597898240 is about 50969.5815168224. The cubic root of 2597898240 is about 1374.6982460692.

The spelling of 2597898240 in words is "two billion, five hundred ninety-seven million, eight hundred ninety-eight thousand, two hundred forty".