260778944 has 28 divisors (see below), whose sum is σ = 534180288. Its totient is φ = 126182400.

The previous prime is 260778943. The next prime is 260778967. The reversal of 260778944 is 449877062.

260778944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×260778944³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260778943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63737 + ... + 67704.

Almost surely, 2^260778944 is an apocalyptic number.

It is an amenable number.

260778944 is an abundant number, since it is smaller than the sum of its proper divisors (273401344).

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

260778944 is a wasteful number, since it uses less digits than its factorization.

260778944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131484 (or 131474 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 260778944 is about 16148.6514607258. The cubic root of 260778944 is about 638.8871807569.

The spelling of 260778944 in words is "two hundred sixty million, seven hundred seventy-eight thousand, nine hundred forty-four".