43120044 has 108 divisors (see below), whose sum is σ = 126355320. Its totient is φ = 12355200.

The previous prime is 43120027. The next prime is 43120057. The reversal of 43120044 is 44002134.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 43119999 and 43120026.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 82504 + ... + 83024.

Almost surely, 2^43120044 is an apocalyptic number.

43120044 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43120044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63177660).

43120044 is an abundant number, since it is smaller than the sum of its proper divisors (83235276).

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

43120044 is a wasteful number, since it uses less digits than its factorization.

43120044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 43120044 is about 6566.5854140489. The cubic root of 43120044 is about 350.6655201153.

Adding to 43120044 its reverse (44002134), we get a palindrome (87122178).

The spelling of 43120044 in words is "forty-three million, one hundred twenty thousand, forty-four".