613340 has 48 divisors (see below), whose sum is σ = 1589952. Its totient is φ = 193536.

The previous prime is 613337. The next prime is 613357. The reversal of 613340 is 43316.

613340 = 293² + 294² + ... + 299².

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1652 + ... + 1988.

It is an arithmetic number, because the mean of its divisors is an integer number (33124).

2⁶¹³³⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 613340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (794976).

613340 is an abundant number, since it is smaller than the sum of its proper divisors (976612).

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

613340 is a wasteful number, since it uses less digits than its factorization.

613340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 613340 is about 783.1602645691. The cubic root of 613340 is about 84.9637677181.

Adding to 613340 its reverse (43316), we get a palindrome (656656).

The spelling of 613340 in words is "six hundred thirteen thousand, three hundred forty".