42807238 has 16 divisors (see below), whose sum is σ = 66250224. Its totient is φ = 20734560.

The previous prime is 42807229. The next prime is 42807257. The reversal of 42807238 is 83270824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5556 + ... + 10792.

It is an arithmetic number, because the mean of its divisors is an integer number (4140639).

Almost surely, 2^42807238 is an apocalyptic number.

42807238 is a deficient number, since it is larger than the sum of its proper divisors (23442986).

42807238 is a wasteful number, since it uses less digits than its factorization.

42807238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5367.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 42807238 is about 6542.7240504243. The cubic root of 42807238 is about 349.8155163819.

The spelling of 42807238 in words is "forty-two million, eight hundred seven thousand, two hundred thirty-eight".