613661832 has 160 divisors (see below), whose sum is σ = 1998532800. Its totient is φ = 172285056.

The previous prime is 613661831. The next prime is 613661849. The reversal of 613661832 is 238166316.

613661832 is a `hidden beast` number, since 6 + 1 + 3 + 6 + 618 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (613661831) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 266478 + ... + 268770.

It is an arithmetic number, because the mean of its divisors is an integer number (12490830).

Almost surely, 2^613661832 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 613661832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (999266400).

613661832 is an abundant number, since it is smaller than the sum of its proper divisors (1384870968).

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

613661832 is a wasteful number, since it uses less digits than its factorization.

613661832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377 (or 2364 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 613661832 is about 24772.1987720105. The cubic root of 613661832 is about 849.7862585984.

The spelling of 613661832 in words is "six hundred thirteen million, six hundred sixty-one thousand, eight hundred thirty-two".