275860780 has 48 divisors (see below), whose sum is σ = 629987904. Its totient is φ = 100857600.

The previous prime is 275860777. The next prime is 275860799. The reversal of 275860780 is 87068572.

It is a happy number.

275860780 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 21630 + ... + 31930.

It is an arithmetic number, because the mean of its divisors is an integer number (13124748).

Almost surely, 2^275860780 is an apocalyptic number.

275860780 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 275860780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314993952).

275860780 is an abundant number, since it is smaller than the sum of its proper divisors (354127124).

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

275860780 is a wasteful number, since it uses less digits than its factorization.

275860780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10426 (or 10424 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 275860780 is about 16609.0571677022. The cubic root of 275860780 is about 650.9735155809.

The spelling of 275860780 in words is "two hundred seventy-five million, eight hundred sixty thousand, seven hundred eighty".