274742 has 8 divisors (see below), whose sum is σ = 443856. Its totient is φ = 126792.

The previous prime is 274739. The next prime is 274751. The reversal of 274742 is 247472.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 10567 = 274742 / (2 + 7 + 4 + 7 + 4 + 2).

It is a plaindrome in base 7 and base 9.

It is a zygodrome in base 7.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5258 + ... + 5309.

It is an arithmetic number, because the mean of its divisors is an integer number (55482).

2²⁷⁴⁷⁴² is an apocalyptic number.

274742 is a deficient number, since it is larger than the sum of its proper divisors (169114).

274742 is a wasteful number, since it uses less digits than its factorization.

274742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10582.

The product of its digits is 3136, while the sum is 26.

The square root of 274742 is about 524.1583730133. The cubic root of 274742 is about 65.0092294587.

The spelling of 274742 in words is "two hundred seventy-four thousand, seven hundred forty-two", and thus it is an iban number.