613040 has 40 divisors (see below), whose sum is σ = 1458240. Its totient is φ = 239616.

The previous prime is 613013. The next prime is 613049. The reversal of 613040 is 40316.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (613049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6272 + ... + 6368.

It is an arithmetic number, because the mean of its divisors is an integer number (36456).

2⁶¹³⁰⁴⁰ 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 613040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (729120).

613040 is an abundant number, since it is smaller than the sum of its proper divisors (845200).

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

613040 is a wasteful number, since it uses less digits than its factorization.

613040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 183 counting only the distinct ones).

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

The square root of 613040 is about 782.9687094642. The cubic root of 613040 is about 84.9499128213.

Adding to 613040 its reverse (40316), we get a palindrome (653356).

The spelling of 613040 in words is "six hundred thirteen thousand, forty".