613529840 has 160 divisors (see below), whose sum is σ = 1793885184. Its totient is φ = 189573120.

The previous prime is 613529837. The next prime is 613529867. The reversal of 613529840 is 48925316.

It is a happy number.

613529840 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 613529794 and 613529803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 843557 + ... + 844283.

Almost surely, 2^613529840 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 613529840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (896942592).

613529840 is an abundant number, since it is smaller than the sum of its proper divisors (1180355344).

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

613529840 is a wasteful number, since it uses less digits than its factorization.

613529840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895 (or 889 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 613529840 is about 24769.5345131878. The cubic root of 613529840 is about 849.7253276292.

The spelling of 613529840 in words is "six hundred thirteen million, five hundred twenty-nine thousand, eight hundred forty".