2605481440 has 48 divisors (see below), whose sum is σ = 6158572560. Its totient is φ = 1041664000.

The previous prime is 2605481393. The next prime is 2605481441. The reversal of 2605481440 is 441845062.

It is a junction number, because it is equal to n+sod(n) for n = 2605481396 and 2605481405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2605481441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517656 + ... + 522664.

It is an arithmetic number, because the mean of its divisors is an integer number (128303595).

Almost surely, 2^2605481440 is an apocalyptic number.

2605481440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2605481440 is an abundant number, since it is smaller than the sum of its proper divisors (3553091120).

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

2605481440 is a wasteful number, since it uses less digits than its factorization.

2605481440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8275 (or 8267 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 2605481440 is about 51043.9167776142. The cubic root of 2605481440 is about 1376.0345166661.

The spelling of 2605481440 in words is "two billion, six hundred five million, four hundred eighty-one thousand, four hundred forty".