74340 has 72 divisors (see below), whose sum is σ = 262080. Its totient is φ = 16704.

The previous prime is 74323. The next prime is 74353. The reversal of 74340 is 4347.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1231 + ... + 1289.

It is an arithmetic number, because the mean of its divisors is an integer number (3640).

2⁷⁴³⁴⁰ is an apocalyptic number.

74340 is a gapful number since it is divisible by the number (70) 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 74340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131040).

74340 is an abundant number, since it is smaller than the sum of its proper divisors (187740).

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

74340 is a wasteful number, since it uses less digits than its factorization.

74340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 74340 is about 272.6536264200. The cubic root of 74340 is about 42.0475651596.

Adding to 74340 its reverse (4347), we get a palindrome (78687).

It can be divided in two parts, 74 and 340, that added together give a palindrome (414).

The spelling of 74340 in words is "seventy-four thousand, three hundred forty", and thus it is an iban number.