43002238 has 4 divisors (see below), whose sum is σ = 64503360. Its totient is φ = 21501118.

The previous prime is 43002229. The next prime is 43002241. The reversal of 43002238 is 83220034.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83220034 = 2 ⋅41610017.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 10750558 + ... + 10750561.

It is an arithmetic number, because the mean of its divisors is an integer number (16125840).

Almost surely, 2^43002238 is an apocalyptic number.

43002238 is a deficient number, since it is larger than the sum of its proper divisors (21501122).

43002238 is a wasteful number, since it uses less digits than its factorization.

43002238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21501121.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 43002238 is about 6557.6091679819. The cubic root of 43002238 is about 350.3458839215.

The spelling of 43002238 in words is "forty-three million, two thousand, two hundred thirty-eight".