613493020 has 96 divisors (see below), whose sum is σ = 1518652800. Its totient is φ = 203833344.

The previous prime is 613493009. The next prime is 613493039. The reversal of 613493020 is 20394316.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 613493020.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 659916 + ... + 660844.

It is an arithmetic number, because the mean of its divisors is an integer number (15819300).

Almost surely, 2^613493020 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 613493020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (759326400).

613493020 is an abundant number, since it is smaller than the sum of its proper divisors (905159780).

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

613493020 is a wasteful number, since it uses less digits than its factorization.

613493020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087 (or 1085 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 613493020 is about 24768.7912502811. The cubic root of 613493020 is about 849.7083289925.

The spelling of 613493020 in words is "six hundred thirteen million, four hundred ninety-three thousand, twenty".