4407434173321 has 9 divisors (see below), whose sum is σ = 4512408751629. Its totient is φ = 4304847529836.

The previous prime is 4407434173313. The next prime is 4407434173333. The reversal of 4407434173321 is 1233714347044.

The square root of 4407434173321 is 2099389.

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

It is not a de Polignac number, because 4407434173321 - 2³ = 4407434173313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4407434171321) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 90249316 + ... + 90298138.

It is an arithmetic number, because the mean of its divisors is an integer number (501378750181).

Almost surely, 2^{4407434173321} is an apocalyptic number.

4407434173321 is the 2099389-th square number.

4407434173321 is the 1049695-th centered octagonal number.

It is an amenable number.

4407434173321 is a deficient number, since it is larger than the sum of its proper divisors (104974578308).

4407434173321 is an frugal number, since it uses more digits than its factorization.

4407434173321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97732 (or 48866 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 43.

The spelling of 4407434173321 in words is "four trillion, four hundred seven billion, four hundred thirty-four million, one hundred seventy-three thousand, three hundred twenty-one".