626850138 has 16 divisors (see below), whose sum is σ = 1296931680. Its totient is φ = 201744816.

The previous prime is 626850131. The next prime is 626850143. The reversal of 626850138 is 831058626.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 626850096 and 626850105.

It is not an unprimeable number, because it can be changed into a prime (626850131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1801120 + ... + 1801467.

It is an arithmetic number, because the mean of its divisors is an integer number (81058230).

Almost surely, 2^626850138 is an apocalyptic number.

626850138 is an abundant number, since it is smaller than the sum of its proper divisors (670081542).

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

626850138 is a wasteful number, since it uses less digits than its factorization.

626850138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3602621.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 626850138 is about 25036.9754163717. The cubic root of 626850138 is about 855.8307933010.

The spelling of 626850138 in words is "six hundred twenty-six million, eight hundred fifty thousand, one hundred thirty-eight".