43243444 has 24 divisors (see below), whose sum is σ = 80506440. Its totient is φ = 20253696.

The previous prime is 43243441. The next prime is 43243451. The reversal of 43243444 is 44434234.

It can be written as a sum of positive squares in 4 ways, for example, as 14212900 + 29030544 = 3770^2 + 5388^2 .

It is a super-2 number, since 2×43243444² = 3739990897962272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43243441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14184 + ... + 16960.

It is an arithmetic number, because the mean of its divisors is an integer number (3354435).

Almost surely, 2^43243444 is an apocalyptic number.

It is an amenable number.

43243444 is a deficient number, since it is larger than the sum of its proper divisors (37262996).

43243444 is a wasteful number, since it uses less digits than its factorization.

43243444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3027 (or 3025 counting only the distinct ones).

The product of its digits is 18432, while the sum is 28.

The square root of 43243444 is about 6575.9747566425. The cubic root of 43243444 is about 350.9997104999. Note that the first 3 decimals are identical.

Adding to 43243444 its reverse (44434234), we get a palindrome (87677678).

The spelling of 43243444 in words is "forty-three million, two hundred forty-three thousand, four hundred forty-four".