274340 has 48 divisors (see below), whose sum is σ = 665280. Its totient is φ = 94080.

The previous prime is 274333. The next prime is 274349. The reversal of 274340 is 43472.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (274349) by changing a digit.

274340 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6359 + ... + 6401.

It is an arithmetic number, because the mean of its divisors is an integer number (13860).

2²⁷⁴³⁴⁰ is an apocalyptic number.

274340 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 274340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332640).

274340 is an abundant number, since it is smaller than the sum of its proper divisors (390940).

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

274340 is a wasteful number, since it uses less digits than its factorization.

274340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 274340 is about 523.7747607512. The cubic root of 274340 is about 64.9775070102.

The spelling of 274340 in words is "two hundred seventy-four thousand, three hundred forty", and thus it is an iban number.