626380994 has 8 divisors (see below), whose sum is σ = 940327500. Its totient is φ = 312938496.

The previous prime is 626380991. The next prime is 626381023. The reversal of 626380994 is 499083626.

It can be written as a sum of positive squares in 2 ways, for example, as 597166969 + 29214025 = 24437^2 + 5405^2 .

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

It is not an unprimeable number, because it can be changed into a prime (626380991) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 122879 + ... + 127874.

Almost surely, 2^626380994 is an apocalyptic number.

626380994 is a deficient number, since it is larger than the sum of its proper divisors (313946506).

626380994 is a wasteful number, since it uses less digits than its factorization.

626380994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252004.

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 626380994 is about 25027.6046396774. The cubic root of 626380994 is about 855.6172345019.

The spelling of 626380994 in words is "six hundred twenty-six million, three hundred eighty thousand, nine hundred ninety-four".