260778380 has 24 divisors (see below), whose sum is σ = 547940400. Its totient is φ = 104253120.

The previous prime is 260778379. The next prime is 260778383. The reversal of 260778380 is 83877062.

260778380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (260778383) 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, 61571 + ... + 65669.

It is an arithmetic number, because the mean of its divisors is an integer number (22830850).

Almost surely, 2^260778380 is an apocalyptic number.

260778380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260778380 is an abundant number, since it is smaller than the sum of its proper divisors (287162020).

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

260778380 is a wasteful number, since it uses less digits than its factorization.

260778380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7289 (or 7287 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 260778380 is about 16148.6339979578. The cubic root of 260778380 is about 638.8867201719.

The spelling of 260778380 in words is "two hundred sixty million, seven hundred seventy-eight thousand, three hundred eighty".