43981272 has 32 divisors (see below), whose sum is σ = 122170800. Its totient is φ = 14660352.

The previous prime is 43981253. The next prime is 43981283. The reversal of 43981272 is 27218934.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101593 + ... + 102024.

Almost surely, 2^43981272 is an apocalyptic number.

It is an amenable number.

43981272 is an abundant number, since it is smaller than the sum of its proper divisors (78189528).

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

43981272 is a wasteful number, since it uses less digits than its factorization.

43981272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203632 (or 203622 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 43981272 is about 6631.8377543483. The cubic root of 43981272 is about 352.9847382702.

It can be divided in two parts, 43981 and 272, that added together give a triangular number (44253 = T₂₉₇).

The spelling of 43981272 in words is "forty-three million, nine hundred eighty-one thousand, two hundred seventy-two".