626330240 has 64 divisors (see below), whose sum is σ = 1503151560. Its totient is φ = 249556992.

The previous prime is 626330233. The next prime is 626330251. The reversal of 626330240 is 42033626.

It can be written as a sum of positive squares in 4 ways, for example, as 497825344 + 128504896 = 22312^2 + 11336^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175514 + ... + 179046.

Almost surely, 2^626330240 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 626330240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (751575780).

626330240 is an abundant number, since it is smaller than the sum of its proper divisors (876821320).

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

626330240 is a wasteful number, since it uses less digits than its factorization.

626330240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3829 (or 3817 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 626330240 is about 25026.5906587374. The cubic root of 626330240 is about 855.5941244083.

Adding to 626330240 its reverse (42033626), we get a palindrome (668363866).

The spelling of 626330240 in words is "six hundred twenty-six million, three hundred thirty thousand, two hundred forty".