43668252 has 18 divisors (see below), whose sum is σ = 110383728. Its totient is φ = 14556072.

The previous prime is 43668211. The next prime is 43668271. The reversal of 43668252 is 25286634.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1213007 = 43668252 / (4 + 3 + 6 + 6 + 8 + 2 + 5 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 606468 + ... + 606539.

Almost surely, 2^43668252 is an apocalyptic number.

It is an amenable number.

43668252 is an abundant number, since it is smaller than the sum of its proper divisors (66715476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43668252 is a wasteful number, since it uses less digits than its factorization.

43668252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213017 (or 1213012 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 43668252 is about 6608.1958203431. The cubic root of 43668252 is about 352.1453321192.

The spelling of 43668252 in words is "forty-three million, six hundred sixty-eight thousand, two hundred fifty-two".