43744272 has 80 divisors (see below), whose sum is σ = 132783168. Its totient is φ = 12234240.

The previous prime is 43744271. The next prime is 43744277. The reversal of 43744272 is 27244734.

It is a super-2 number, since 2×43744272² = 3827122665619968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43744271) 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, 3678 + ... + 10050.

Almost surely, 2^43744272 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 43744272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66391584).

43744272 is an abundant number, since it is smaller than the sum of its proper divisors (89038896).

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

43744272 is a wasteful number, since it uses less digits than its factorization.

43744272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6408 (or 6402 counting only the distinct ones).

The product of its digits is 37632, while the sum is 33.

The square root of 43744272 is about 6613.9452673877. The cubic root of 43744272 is about 352.3495580551.

It can be divided in two parts, 4374 and 4272, that added together give a triangular number (8646 = T₁₃₁).

The spelling of 43744272 in words is "forty-three million, seven hundred forty-four thousand, two hundred seventy-two".