43500 has 48 divisors (see below), whose sum is σ = 131040. Its totient is φ = 11200.

The previous prime is 43499. The next prime is 43517. The reversal of 43500 is 534.

43500 is an esthetic number in base 12, because in such base its adjacent digits differ by 1.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a nialpdrome in base 6.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1486 + ... + 1514.

It is an arithmetic number, because the mean of its divisors is an integer number (2730).

2⁴³⁵⁰⁰ 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 43500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65520).

43500 is an abundant number, since it is smaller than the sum of its proper divisors (87540).

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

43500 is a wasteful number, since it uses less digits than its factorization.

43500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51 (or 39 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 12.

The square root of 43500 is about 208.5665361461. The cubic root of 43500 is about 35.1692482800.

The spelling of 43500 in words is "forty-three thousand, five hundred".