43381272 has 64 divisors (see below), whose sum is σ = 119986560. Its totient is φ = 12960000.

The previous prime is 43381271. The next prime is 43381277. The reversal of 43381272 is 27218334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43381271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18147 + ... + 20397.

It is an arithmetic number, because the mean of its divisors is an integer number (1874790).

Almost surely, 2^43381272 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 43381272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59993280).

43381272 is an abundant number, since it is smaller than the sum of its proper divisors (76605288).

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

43381272 is a wasteful number, since it uses less digits than its factorization.

43381272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344 (or 2340 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 43381272 is about 6586.4460826761. The cubic root of 43381272 is about 351.3722238582.

The spelling of 43381272 in words is "forty-three million, three hundred eighty-one thousand, two hundred seventy-two".