4343732649 has 21 divisors (see below), whose sum is σ = 6515288839. Its totient is φ = 2894635440.

The previous prime is 4343732641. The next prime is 4343732699. The reversal of 4343732649 is 9462373434.

The square root of 4343732649 is 65907.

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., 419963049 + 3923769600 = 20493^2 + 62640^2 .

It is not a de Polignac number, because 4343732649 - 2³ = 4343732641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4343732641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 1778269 + ... + 1780709.

Almost surely, 2^4343732649 is an apocalyptic number.

4343732649 is the 65907-th square number.

4343732649 is the 32954-th centered octagonal number.

It is an amenable number.

4343732649 is a deficient number, since it is larger than the sum of its proper divisors (2171556190).

4343732649 is an frugal number, since it uses more digits than its factorization.

4343732649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4900 (or 2444 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 45.

The cubic root of 4343732649 is about 1631.6275473318.

The spelling of 4343732649 in words is "four billion, three hundred forty-three million, seven hundred thirty-two thousand, six hundred forty-nine".