43834381 has 16 divisors (see below), whose sum is σ = 48033216. Its totient is φ = 39833856.

The previous prime is 43834379. The next prime is 43834393. The reversal of 43834381 is 18343834.

It is a happy number.

43834381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43834381 - 2¹ = 43834379 is a prime.

It is a super-2 number, since 2×43834381² = 3842905915306322, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43834981) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 142630 + ... + 142936.

It is an arithmetic number, because the mean of its divisors is an integer number (3002076).

Almost surely, 2^43834381 is an apocalyptic number.

It is an amenable number.

43834381 is a deficient number, since it is larger than the sum of its proper divisors (4198835).

43834381 is a wasteful number, since it uses less digits than its factorization.

43834381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588.

The product of its digits is 27648, while the sum is 34.

The square root of 43834381 is about 6620.7538090462. The cubic root of 43834381 is about 352.5913275427.

The spelling of 43834381 in words is "forty-three million, eight hundred thirty-four thousand, three hundred eighty-one".