4421606738 has 8 divisors (see below), whose sum is σ = 7022551932. Its totient is φ = 2080756096.

The previous prime is 4421606723. The next prime is 4421606743. The reversal of 4421606738 is 8376061244.

It can be written as a sum of positive squares in 2 ways, for example, as 4311629569 + 109977169 = 65663^2 + 10487^2 .

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

It is a super-2 number, since 2×4421606738² = 39101212291054001288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4421606695 and 4421606704.

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, 65023595 + ... + 65023662.

Almost surely, 2^4421606738 is an apocalyptic number.

4421606738 is a deficient number, since it is larger than the sum of its proper divisors (2600945194).

4421606738 is a wasteful number, since it uses less digits than its factorization.

4421606738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130047276.

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 4421606738 is about 66495.1632677144. The cubic root of 4421606738 is about 1641.3204141520.

The spelling of 4421606738 in words is "four billion, four hundred twenty-one million, six hundred six thousand, seven hundred thirty-eight".