43287072 has 48 divisors (see below), whose sum is σ = 114220512. Its totient is φ = 14353920.

The previous prime is 43287059. The next prime is 43287091. The reversal of 43287072 is 27078234.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×43287072³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19188 + ... + 21324.

It is an arithmetic number, because the mean of its divisors is an integer number (2379594).

Almost surely, 2^43287072 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 43287072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57110256).

43287072 is an abundant number, since it is smaller than the sum of its proper divisors (70933440).

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

43287072 is a wasteful number, since it uses less digits than its factorization.

43287072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2361 (or 2353 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 43287072 is about 6579.2911472286. The cubic root of 43287072 is about 351.1177111876.

The spelling of 43287072 in words is "forty-three million, two hundred eighty-seven thousand, seventy-two".