4474138321 has 3 divisors (see below), whose sum is σ = 4474205211. Its totient is φ = 4474071432.

The previous prime is 4474138307. The next prime is 4474138337. The reversal of 4474138321 is 1238314744.

The square root of 4474138321 is 66889.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 1897560721 + 2576577600 = 43561^2 + 50760^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4474138321 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4474138381) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 33445 + ... + 100333.

It is an arithmetic number, because the mean of its divisors is an integer number (1491401737).

Almost surely, 2^4474138321 is an apocalyptic number.

4474138321 is the 66889-th square number.

4474138321 is the 33445-th centered octagonal number.

It is an amenable number.

4474138321 is a deficient number, since it is larger than the sum of its proper divisors (66890).

4474138321 is an frugal number, since it uses more digits than its factorization.

4474138321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133778 (or 66889 counting only the distinct ones).

The product of its digits is 64512, while the sum is 37.

The cubic root of 4474138321 is about 1647.7948283996.

The spelling of 4474138321 in words is "four billion, four hundred seventy-four million, one hundred thirty-eight thousand, three hundred twenty-one".