42103838 has 12 divisors (see below), whose sum is σ = 73467072. Its totient is φ = 18044460.

The previous prime is 42103819. The next prime is 42103861. The reversal of 42103838 is 83830124.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 42103838.

It is a congruent number.

It is an unprimeable number.

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, 214718 + ... + 214913.

It is an arithmetic number, because the mean of its divisors is an integer number (6122256).

Almost surely, 2^42103838 is an apocalyptic number.

42103838 is a deficient number, since it is larger than the sum of its proper divisors (31363234).

42103838 is a wasteful number, since it uses less digits than its factorization.

42103838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429647 (or 429640 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 42103838 is about 6488.7470285102. The cubic root of 42103838 is about 347.8888919529. Note that the first 4 decimals are identical.

The spelling of 42103838 in words is "forty-two million, one hundred three thousand, eight hundred thirty-eight".