43751952 has 60 divisors (see below), whose sum is σ = 126679020. Its totient is φ = 14079744.

The previous prime is 43751951. The next prime is 43751963. The reversal of 43751952 is 25915734.

It can be written as a sum of positive squares in 2 ways, for example, as 28259856 + 15492096 = 5316^2 + 3936^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (43751951) 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 11 ways as a sum of consecutive naturals, for example, 1063 + ... + 9414.

It is an arithmetic number, because the mean of its divisors is an integer number (2111317).

Almost surely, 2^43751952 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 43751952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63339510).

43751952 is an abundant number, since it is smaller than the sum of its proper divisors (82927068).

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

43751952 is a wasteful number, since it uses less digits than its factorization.

43751952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10520 (or 10511 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 43751952 is about 6614.5258333459. The cubic root of 43751952 is about 352.3701770309.

The spelling of 43751952 in words is "forty-three million, seven hundred fifty-one thousand, nine hundred fifty-two".