43256532 has 72 divisors (see below), whose sum is σ = 114639616. Its totient is φ = 12685200.

The previous prime is 43256531. The next prime is 43256557. The reversal of 43256532 is 23565234.

It is a super-2 number, since 2×43256532² = 3742255121334048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43256532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43256531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1395357 + ... + 1395387.

Almost surely, 2^43256532 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 43256532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57319808).

43256532 is an abundant number, since it is smaller than the sum of its proper divisors (71383084).

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

43256532 is a wasteful number, since it uses less digits than its factorization.

43256532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 47 counting only the distinct ones).

The product of its digits is 21600, while the sum is 30.

The square root of 43256532 is about 6576.9698189972. The cubic root of 43256532 is about 351.0351179545.

The spelling of 43256532 in words is "forty-three million, two hundred fifty-six thousand, five hundred thirty-two".