275740 has 24 divisors (see below), whose sum is σ = 613872. Its totient is φ = 103680.

The previous prime is 275729. The next prime is 275741. The reversal of 275740 is 47572.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275741) 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, 66 + ... + 745.

It is an arithmetic number, because the mean of its divisors is an integer number (25578).

2²⁷⁵⁷⁴⁰ is an apocalyptic number.

275740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275740 is an abundant number, since it is smaller than the sum of its proper divisors (338132).

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

275740 is a wasteful number, since it uses less digits than its factorization.

275740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837 (or 835 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 275740 is about 525.1095123877. The cubic root of 275740 is about 65.0878496566.

The spelling of 275740 in words is "two hundred seventy-five thousand, seven hundred forty".