43995132 has 54 divisors (see below), whose sum is σ = 114145304. Its totient is φ = 14287680.

The previous prime is 43995121. The next prime is 43995137. The reversal of 43995132 is 23159934.

It is a happy number.

43995132 is a `hidden beast` number, since 439 + 95 + 132 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43995137) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 60153 + ... + 60879.

Almost surely, 2^43995132 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 43995132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57072652).

43995132 is an abundant number, since it is smaller than the sum of its proper divisors (70150172).

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

43995132 is a wasteful number, since it uses less digits than its factorization.

43995132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819 (or 773 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 43995132 is about 6632.8826312547. The cubic root of 43995132 is about 353.0218135557.

The spelling of 43995132 in words is "forty-three million, nine hundred ninety-five thousand, one hundred thirty-two".