2558874240 has 320 divisors, whose sum is σ = 9843732360. Its totient is φ = 629710848.

The previous prime is 2558874239. The next prime is 2558874301. The reversal of 2558874240 is 424788552.

2558874240 is a `hidden beast` number, since 2 + 558 + 8 + 74 + 24 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 760435776 + 1798438464 = 27576^2 + 42408^2 .

It is a tau number, because it is divible by the number of its divisors (320).

It is a super-2 number, since 2×2558874240² = 13095674752271155200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 672022 + ... + 675818.

Almost surely, 2^2558874240 is an apocalyptic number.

2558874240 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 2558874240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4921866180).

2558874240 is an abundant number, since it is smaller than the sum of its proper divisors (7284858120).

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

2558874240 is a wasteful number, since it uses less digits than its factorization.

2558874240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3841 (or 3820 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 45.

The square root of 2558874240 is about 50585.3164465737. The cubic root of 2558874240 is about 1367.7802047615.

The spelling of 2558874240 in words is "two billion, five hundred fifty-eight million, eight hundred seventy-four thousand, two hundred forty".