621329338 has 8 divisors (see below), whose sum is σ = 1065136032. Its totient is φ = 266283996.

The previous prime is 621329323. The next prime is 621329363. The reversal of 621329338 is 833923126.

621329338 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 621329297 and 621329306.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22190320 + ... + 22190347.

It is an arithmetic number, because the mean of its divisors is an integer number (133142004).

Almost surely, 2^621329338 is an apocalyptic number.

621329338 is a deficient number, since it is larger than the sum of its proper divisors (443806694).

621329338 is a wasteful number, since it uses less digits than its factorization.

621329338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44380676.

The product of its digits is 46656, while the sum is 37.

The square root of 621329338 is about 24926.4786522284. The cubic root of 621329338 is about 853.3108875050.

The spelling of 621329338 in words is "six hundred twenty-one million, three hundred twenty-nine thousand, three hundred thirty-eight".