6438022330 has 16 divisors (see below), whose sum is σ = 11988042120. Its totient is φ = 2486408512.

The previous prime is 6438022319. The next prime is 6438022343. The reversal of 6438022330 is 332208346.

It can be written as a sum of positive squares in 4 ways, for example, as 3513051441 + 2924970889 = 59271^2 + 54083^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6438022292 and 6438022301.

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, 11099749 + ... + 11100328.

Almost surely, 2^6438022330 is an apocalyptic number.

6438022330 is a deficient number, since it is larger than the sum of its proper divisors (5550019790).

6438022330 is a wasteful number, since it uses less digits than its factorization.

6438022330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22200113.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 6438022330 is about 80237.2876535592. The cubic root of 6438022330 is about 1860.3050266699.

The spelling of 6438022330 in words is "six billion, four hundred thirty-eight million, twenty-two thousand, three hundred thirty".