43808942 has 4 divisors (see below), whose sum is σ = 65713416. Its totient is φ = 21904470.

The previous prime is 43808929. The next prime is 43808969. The reversal of 43808942 is 24980834.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24980834 = 2 ⋅12490417.

It is a junction number, because it is equal to n+sod(n) for n = 43808896 and 43808905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10952234 + ... + 10952237.

It is an arithmetic number, because the mean of its divisors is an integer number (16428354).

Almost surely, 2^43808942 is an apocalyptic number.

43808942 is a deficient number, since it is larger than the sum of its proper divisors (21904474).

43808942 is a wasteful number, since it uses less digits than its factorization.

43808942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21904473.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 43808942 is about 6618.8323743694. The cubic root of 43808942 is about 352.5231063102.

The spelling of 43808942 in words is "forty-three million, eight hundred eight thousand, nine hundred forty-two".