260303774440 has 32 divisors (see below), whose sum is σ = 585703149480. Its totient is φ = 104118015232.

The previous prime is 260303774389. The next prime is 260303774441. The reversal of 260303774440 is 44477303062.

It can be written as a sum of positive squares in 4 ways, for example, as 230421120484 + 29882653956 = 480022^2 + 172866^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 260303774393 and 260303774402.

It is not an unprimeable number, because it can be changed into a prime (260303774441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1332474 + ... + 1515286.

Almost surely, 2^260303774440 is an apocalyptic number.

260303774440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260303774440 is an abundant number, since it is smaller than the sum of its proper divisors (325399375040).

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

260303774440 is a wasteful number, since it uses less digits than its factorization.

260303774440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218421 (or 218417 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 40.

The spelling of 260303774440 in words is "two hundred sixty billion, three hundred three million, seven hundred seventy-four thousand, four hundred forty".