43881152 has 56 divisors (see below), whose sum is σ = 101986080. Its totient is φ = 18339840.

The previous prime is 43881137. The next prime is 43881157. The reversal of 43881152 is 25118834.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (43881157) by changing a digit.

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, 17174 + ... + 19562.

It is an arithmetic number, because the mean of its divisors is an integer number (1821180).

Almost surely, 2^43881152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43881152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50993040).

43881152 is an abundant number, since it is smaller than the sum of its proper divisors (58104928).

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

43881152 is a wasteful number, since it uses less digits than its factorization.

43881152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449 (or 2439 counting only the distinct ones).

The product of its digits is 7680, while the sum is 32.

The square root of 43881152 is about 6624.2850180227. The cubic root of 43881152 is about 352.7166871866.

Adding to 43881152 its reverse (25118834), we get a palindrome (68999986).

The spelling of 43881152 in words is "forty-three million, eight hundred eighty-one thousand, one hundred fifty-two".