42943238 has 12 divisors (see below), whose sum is σ = 69751548. Its totient is φ = 19819800.

The previous prime is 42943237. The next prime is 42943259. The reversal of 42943238 is 83234924.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42943198 and 42943207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42943237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63188 + ... + 63863.

It is an arithmetic number, because the mean of its divisors is an integer number (5812629).

Almost surely, 2^42943238 is an apocalyptic number.

42943238 is a deficient number, since it is larger than the sum of its proper divisors (26808310).

42943238 is a wasteful number, since it uses less digits than its factorization.

42943238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127079 (or 127066 counting only the distinct ones).

The product of its digits is 41472, while the sum is 35.

The square root of 42943238 is about 6553.1090331231. The cubic root of 42943238 is about 350.1855832120.

The spelling of 42943238 in words is "forty-two million, nine hundred forty-three thousand, two hundred thirty-eight".