43381044 has 36 divisors (see below), whose sum is σ = 125323744. Its totient is φ = 12394512.

The previous prime is 43380979. The next prime is 43381069. The reversal of 43381044 is 44018334.

43381044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 43380999 and 43381017.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85822 + ... + 86325.

Almost surely, 2^43381044 is an apocalyptic number.

It is an amenable number.

43381044 is an abundant number, since it is smaller than the sum of its proper divisors (81942700).

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

43381044 is a wasteful number, since it uses less digits than its factorization.

43381044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172164 (or 172159 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 43381044 is about 6586.4287743815. The cubic root of 43381044 is about 351.3716082852.

Adding to 43381044 its reverse (44018334), we get a palindrome (87399378).

The spelling of 43381044 in words is "forty-three million, three hundred eighty-one thousand, forty-four".