4399138276 has 27 divisors (see below), whose sum is σ = 8339505993. Its totient is φ = 2029575600.

The previous prime is 4399138241. The next prime is 4399138291. The reversal of 4399138276 is 6728319934.

The square root of 4399138276 is 66326.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 650760100 + 3748378176 = 25510^2 + 61224^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1723201 + ... + 1725751.

Almost surely, 2^4399138276 is an apocalyptic number.

4399138276 is the 66326-th square number.

It is an amenable number.

4399138276 is a deficient number, since it is larger than the sum of its proper divisors (3940367717).

4399138276 is an equidigital number, since it uses as much as digits as its factorization.

4399138276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5132 (or 2566 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 52.

The cubic root of 4399138276 is about 1638.5355601560.

The spelling of 4399138276 in words is "four billion, three hundred ninety-nine million, one hundred thirty-eight thousand, two hundred seventy-six".