2580650240 has 144 divisors (see below), whose sum is σ = 7095852288. Its totient is φ = 880877568.

The previous prime is 2580650239. The next prime is 2580650311. The reversal of 2580650240 is 420560852.

It is a super-2 number, since 2×2580650240² = 13319511322424115200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 2580650197 and 2580650206.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2624789 + ... + 2625771.

It is an arithmetic number, because the mean of its divisors is an integer number (49276752).

Almost surely, 2^2580650240 is an apocalyptic number.

2580650240 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 2580650240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3547926144).

2580650240 is an abundant number, since it is smaller than the sum of its proper divisors (4515202048).

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

2580650240 is an equidigital number, since it uses as much as digits as its factorization.

2580650240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304 (or 1290 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 2580650240 is about 50800.1007873016. The cubic root of 2580650240 is about 1371.6491834252.

The spelling of 2580650240 in words is "two billion, five hundred eighty million, six hundred fifty thousand, two hundred forty".