61340 has 12 divisors (see below), whose sum is σ = 128856. Its totient is φ = 24528.

The previous prime is 61339. The next prime is 61343. The reversal of 61340 is 4316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1514 + ... + 1553.

It is an arithmetic number, because the mean of its divisors is an integer number (10738).

2⁶¹³⁴⁰ is an apocalyptic number.

It is an amenable number.

61340 is an abundant number, since it is smaller than the sum of its proper divisors (67516).

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 (64428).

61340 is a wasteful number, since it uses less digits than its factorization.

61340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076 (or 3074 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 61340 is about 247.6691341286. The cubic root of 61340 is about 39.4379734732.

Adding to 61340 its reverse (4316), we get a palindrome (65656).

The spelling of 61340 in words is "sixty-one thousand, three hundred forty".