626889648 has 320 divisors, whose sum is σ = 2171289600. Its totient is φ = 150958080.

The previous prime is 626889643. The next prime is 626889649. The reversal of 626889648 is 846988626.

626889648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (626889643) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5547640 + ... + 5547752.

It is an arithmetic number, because the mean of its divisors is an integer number (6785280).

Almost surely, 2^626889648 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 626889648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1085644800).

626889648 is an abundant number, since it is smaller than the sum of its proper divisors (1544399952).

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

626889648 is a wasteful number, since it uses less digits than its factorization.

626889648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 234 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 57.

The square root of 626889648 is about 25037.7644369460. The cubic root of 626889648 is about 855.8487737625.

The spelling of 626889648 in words is "six hundred twenty-six million, eight hundred eighty-nine thousand, six hundred forty-eight".