275742 has 12 divisors (see below), whose sum is σ = 597480. Its totient is φ = 91908.

The previous prime is 275741. The next prime is 275767. The reversal of 275742 is 247572.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its 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 5 ways as a sum of consecutive naturals, for example, 7642 + ... + 7677.

It is an arithmetic number, because the mean of its divisors is an integer number (49790).

2²⁷⁵⁷⁴² is an apocalyptic number.

275742 is an abundant number, since it is smaller than the sum of its proper divisors (321738).

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

275742 is a wasteful number, since it uses less digits than its factorization.

275742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15327 (or 15324 counting only the distinct ones).

The product of its digits is 3920, while the sum is 27.

The square root of 275742 is about 525.1114167489. Note that the first 3 decimals coincide. The cubic root of 275742 is about 65.0880070215.

The spelling of 275742 in words is "two hundred seventy-five thousand, seven hundred forty-two".