43448869 has 4 divisors (see below), whose sum is σ = 43689100. Its totient is φ = 43208640.

The previous prime is 43448861. The next prime is 43448893. The reversal of 43448869 is 96884434.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11390625 + 32058244 = 3375^2 + 5662^2 .

It is a cyclic number.

It is not a de Polignac number, because 43448869 - 2³ = 43448861 is a prime.

It is a super-2 number, since 2×43448869² = 3775608434758322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43448861) 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, 119844 + ... + 120205.

It is an arithmetic number, because the mean of its divisors is an integer number (10922275).

Almost surely, 2^43448869 is an apocalyptic number.

It is an amenable number.

43448869 is a deficient number, since it is larger than the sum of its proper divisors (240231).

43448869 is a wasteful number, since it uses less digits than its factorization.

43448869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240230.

The product of its digits is 663552, while the sum is 46.

The square root of 43448869 is about 6591.5756083049. The cubic root of 43448869 is about 351.5546326957.

The spelling of 43448869 in words is "forty-three million, four hundred forty-eight thousand, eight hundred sixty-nine".