4398740329 has 9 divisors (see below), whose sum is σ = 4557644247. Its totient is φ = 4245202584.

The previous prime is 4398740323. The next prime is 4398740417. The reversal of 4398740329 is 9230478934.

It is a happy number.

The square root of 4398740329 is 66323.

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., 2306592729 + 2092147600 = 48027^2 + 45740^2 .

It is not a de Polignac number, because 4398740329 - 2⁷ = 4398740201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4398740323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1922224 + ... + 1924510.

Almost surely, 2^4398740329 is an apocalyptic number.

4398740329 is the 66323-rd square number.

4398740329 is the 33162-nd centered octagonal number.

It is an amenable number.

4398740329 is a deficient number, since it is larger than the sum of its proper divisors (158903918).

4398740329 is an frugal number, since it uses more digits than its factorization.

4398740329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4632 (or 2316 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 49.

The cubic root of 4398740329 is about 1638.4861512391.

Multiplying 4398740329 by its sum of digits (49), we get a square (215538276121 = 464261²).

The spelling of 4398740329 in words is "four billion, three hundred ninety-eight million, seven hundred forty thousand, three hundred twenty-nine".