626144242 has 8 divisors (see below), whose sum is σ = 961058736. Its totient is φ = 305791332.

The previous prime is 626144227. The next prime is 626144273. The reversal of 626144242 is 242441626.

It is a happy number.

626144242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×626144242² = 784113223579509128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3640288 + ... + 3640459.

It is an arithmetic number, because the mean of its divisors is an integer number (120132342).

Almost surely, 2^626144242 is an apocalyptic number.

626144242 is a deficient number, since it is larger than the sum of its proper divisors (334914494).

626144242 is a wasteful number, since it uses less digits than its factorization.

626144242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7280792.

The product of its digits is 18432, while the sum is 31.

The square root of 626144242 is about 25022.8743752591. The cubic root of 626144242 is about 855.5094222596.

Adding to 626144242 its reverse (242441626), we get a palindrome (868585868).

The spelling of 626144242 in words is "six hundred twenty-six million, one hundred forty-four thousand, two hundred forty-two".