43918 has 8 divisors (see below), whose sum is σ = 75312. Its totient is φ = 18816.

The previous prime is 43913. The next prime is 43933. The reversal of 43918 is 81934.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 43892 and 43901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1555 + ... + 1582.

It is an arithmetic number, because the mean of its divisors is an integer number (9414).

2⁴³⁹¹⁸ is an apocalyptic number.

43918 is a deficient number, since it is larger than the sum of its proper divisors (31394).

43918 is a wasteful number, since it uses less digits than its factorization.

43918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3146.

The product of its digits is 864, while the sum is 25.

The square root of 43918 is about 209.5662186518. The cubic root of 43918 is about 35.2815387636.

It can be divided in two parts, 43 and 918, that added together give a square (961 = 31²).

The spelling of 43918 in words is "forty-three thousand, nine hundred eighteen".