43520252 has 12 divisors (see below), whose sum is σ = 77297640. Its totient is φ = 21435216.

The previous prime is 43520237. The next prime is 43520263. The reversal of 43520252 is 25202534.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80927 + ... + 81462.

It is an arithmetic number, because the mean of its divisors is an integer number (6441470).

Almost surely, 2^43520252 is an apocalyptic number.

It is an amenable number.

43520252 is a deficient number, since it is larger than the sum of its proper divisors (33777388).

43520252 is a wasteful number, since it uses less digits than its factorization.

43520252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162460 (or 162458 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 43520252 is about 6596.9881006411. The cubic root of 43520252 is about 351.7470526936.

Adding to 43520252 its reverse (25202534), we get a palindrome (68722786).

The spelling of 43520252 in words is "forty-three million, five hundred twenty thousand, two hundred fifty-two".