43401132 has 36 divisors (see below), whose sum is σ = 110158776. Its totient is φ = 14407680.

The previous prime is 43401131. The next prime is 43401151. The reversal of 43401132 is 23110434.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (43401131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6907 + ... + 11597.

It is an arithmetic number, because the mean of its divisors is an integer number (3059966).

Almost surely, 2^43401132 is an apocalyptic number.

It is an amenable number.

43401132 is an abundant number, since it is smaller than the sum of its proper divisors (66757644).

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

43401132 is a wasteful number, since it uses less digits than its factorization.

43401132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4958 (or 4953 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 43401132 is about 6587.9535517488. The cubic root of 43401132 is about 351.4258352242.

Adding to 43401132 its reverse (23110434), we get a palindrome (66511566).

The spelling of 43401132 in words is "forty-three million, four hundred one thousand, one hundred thirty-two".