626230728 has 96 divisors (see below), whose sum is σ = 1794000000. Its totient is φ = 196795008.

The previous prime is 626230711. The next prime is 626230733. The reversal of 626230728 is 827032626.

626230728 is a `hidden beast` number, since 6 + 2 + 623 + 0 + 7 + 28 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 626230692 and 626230701.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 312273 + ... + 314271.

It is an arithmetic number, because the mean of its divisors is an integer number (18687500).

Almost surely, 2^626230728 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 626230728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (897000000).

626230728 is an abundant number, since it is smaller than the sum of its proper divisors (1167769272).

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

626230728 is a wasteful number, since it uses less digits than its factorization.

626230728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2259 (or 2252 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 626230728 is about 25024.6024543848. The cubic root of 626230728 is about 855.5488094469.

The spelling of 626230728 in words is "six hundred twenty-six million, two hundred thirty thousand, seven hundred twenty-eight".