4343744040409 has 4 divisors (see below), whose sum is σ = 4343782317840. Its totient is φ = 4343705762980.

The previous prime is 4343744040379. The next prime is 4343744040413. The reversal of 4343744040409 is 9040404473434.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4343744040409 - 2¹⁹ = 4343743516121 is a prime.

It is a super-2 number, since 2×4343744040409² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4343744040499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18967987 + ... + 19195624.

It is an arithmetic number, because the mean of its divisors is an integer number (1085945579460).

Almost surely, 2^{4343744040409} is an apocalyptic number.

It is an amenable number.

4343744040409 is a deficient number, since it is larger than the sum of its proper divisors (38277431).

4343744040409 is a wasteful number, since it uses less digits than its factorization.

4343744040409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38277430.

The product of its (nonzero) digits is 2322432, while the sum is 46.

The spelling of 4343744040409 in words is "four trillion, three hundred forty-three billion, seven hundred forty-four million, forty thousand, four hundred nine".