43552420 has 24 divisors (see below), whose sum is σ = 91675584. Its totient is φ = 17379936.

The previous prime is 43552381. The next prime is 43552451. The reversal of 43552420 is 2425534.

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 7 ways as a sum of consecutive naturals, for example, 7009 + ... + 11671.

It is an arithmetic number, because the mean of its divisors is an integer number (3819816).

Almost surely, 2^43552420 is an apocalyptic number.

It is an amenable number.

43552420 is an abundant number, since it is smaller than the sum of its proper divisors (48123164).

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

43552420 is a wasteful number, since it uses less digits than its factorization.

43552420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5139 (or 5137 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 43552420 is about 6599.4257325922. The cubic root of 43552420 is about 351.8336959764.

Adding to 43552420 its reverse (2425534), we get a palindrome (45977954).

The spelling of 43552420 in words is "forty-three million, five hundred fifty-two thousand, four hundred twenty".