43420346393 has 4 divisors (see below), whose sum is σ = 43611625680. Its totient is φ = 43229067108.

The previous prime is 43420346369. The next prime is 43420346401. The reversal of 43420346393 is 39364302434.

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 43420346393 - 2¹² = 43420342297 is a prime.

It is a super-2 number, since 2×43420346393² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43420346393.

It is not an unprimeable number, because it can be changed into a prime (43420348393) 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, 95639303 + ... + 95639756.

It is an arithmetic number, because the mean of its divisors is an integer number (10902906420).

Almost surely, 2^43420346393 is an apocalyptic number.

It is an amenable number.

43420346393 is a deficient number, since it is larger than the sum of its proper divisors (191279287).

43420346393 is a wasteful number, since it uses less digits than its factorization.

43420346393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191279286.

The product of its (nonzero) digits is 559872, while the sum is 41.

The spelling of 43420346393 in words is "forty-three billion, four hundred twenty million, three hundred forty-six thousand, three hundred ninety-three".