613688242 has 16 divisors (see below), whose sum is σ = 936947520. Its totient is φ = 301398768.

The previous prime is 613688213. The next prime is 613688249. The reversal of 613688242 is 242886316.

It is a super-2 number, since 2×613688242² = 753226516738101128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 613688195 and 613688204.

It is not an unprimeable number, because it can be changed into a prime (613688249) 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, 41728 + ... + 54484.

It is an arithmetic number, because the mean of its divisors is an integer number (58559220).

Almost surely, 2^613688242 is an apocalyptic number.

613688242 is a deficient number, since it is larger than the sum of its proper divisors (323259278).

613688242 is a wasteful number, since it uses less digits than its factorization.

613688242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13185.

The product of its digits is 110592, while the sum is 40.

The square root of 613688242 is about 24772.7318235192. The cubic root of 613688242 is about 849.7984490981.

The spelling of 613688242 in words is "six hundred thirteen million, six hundred eighty-eight thousand, two hundred forty-two".