43728372 has 36 divisors (see below), whose sum is σ = 111043296. Its totient is φ = 14509200.

The previous prime is 43728361. The next prime is 43728407. The reversal of 43728372 is 27382734.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 5497 + ... + 10847.

It is an arithmetic number, because the mean of its divisors is an integer number (3084536).

Almost surely, 2^43728372 is an apocalyptic number.

It is an amenable number.

43728372 is an abundant number, since it is smaller than the sum of its proper divisors (67314924).

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

43728372 is a wasteful number, since it uses less digits than its factorization.

43728372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5588 (or 5583 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 43728372 is about 6612.7431524293. The cubic root of 43728372 is about 352.3068626603.

It can be divided in two parts, 43728 and 372, that added together give a square (44100 = 210²).

The spelling of 43728372 in words is "forty-three million, seven hundred twenty-eight thousand, three hundred seventy-two".