45340 has 12 divisors (see below), whose sum is σ = 95256. Its totient is φ = 18128.

The previous prime is 45337. The next prime is 45341. The reversal of 45340 is 4354.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1114 + ... + 1153.

It is an arithmetic number, because the mean of its divisors is an integer number (7938).

2⁴⁵³⁴⁰ is an apocalyptic number.

It is an amenable number.

45340 is an abundant number, since it is smaller than the sum of its proper divisors (49916).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47628).

45340 is a wasteful number, since it uses less digits than its factorization.

45340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276 (or 2274 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 45340 is about 212.9319140007. The cubic root of 45340 is about 35.6582893923.

Adding to 45340 its reverse (4354), we get a palindrome (49694).

The spelling of 45340 in words is "forty-five thousand, three hundred forty".