626117242 has 8 divisors (see below), whose sum is σ = 994421556. Its totient is φ = 294643392.

The previous prime is 626117231. The next prime is 626117243. The reversal of 626117242 is 242711626.

626117242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 535505881 + 90611361 = 23141^2 + 9519^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (626117243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9207573 + ... + 9207640.

Almost surely, 2^626117242 is an apocalyptic number.

626117242 is a deficient number, since it is larger than the sum of its proper divisors (368304314).

626117242 is a wasteful number, since it uses less digits than its factorization.

626117242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18415232.

The product of its digits is 8064, while the sum is 31.

The square root of 626117242 is about 25022.3348630778. The cubic root of 626117242 is about 855.4971252600.

Adding to 626117242 its reverse (242711626), we get a palindrome (868828868).

The spelling of 626117242 in words is "six hundred twenty-six million, one hundred seventeen thousand, two hundred forty-two".