43145533444 has 24 divisors (see below), whose sum is σ = 83295977688. Its totient is φ = 19427631360.

The previous prime is 43145533441. The next prime is 43145533451. The reversal of 43145533444 is 44433554134.

It can be written as a sum of positive squares in 4 ways, for example, as 7518970944 + 35626562500 = 86712^2 + 188750^2 .

It is a super-2 number, since 2×43145533444² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43145533397 and 43145533406.

It is not an unprimeable number, because it can be changed into a prime (43145533441) 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 7 ways as a sum of consecutive naturals, for example, 10116427 + ... + 10120690.

It is an arithmetic number, because the mean of its divisors is an integer number (3470665737).

Almost surely, 2^43145533444 is an apocalyptic number.

It is an amenable number.

43145533444 is a deficient number, since it is larger than the sum of its proper divisors (40150444244).

43145533444 is a wasteful number, since it uses less digits than its factorization.

43145533444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20237175 (or 20237173 counting only the distinct ones).

The product of its digits is 691200, while the sum is 40.

The spelling of 43145533444 in words is "forty-three billion, one hundred forty-five million, five hundred thirty-three thousand, four hundred forty-four".