42173038 has 8 divisors (see below), whose sum is σ = 63355032. Its totient is φ = 21054696.

The previous prime is 42172997. The next prime is 42173057. The reversal of 42173038 is 83037124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 42172997 and 42173015.

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 3 ways as a sum of consecutive naturals, for example, 14220 + ... + 16927.

It is an arithmetic number, because the mean of its divisors is an integer number (7919379).

Almost surely, 2^42173038 is an apocalyptic number.

42173038 is a deficient number, since it is larger than the sum of its proper divisors (21181994).

42173038 is a wasteful number, since it uses less digits than its factorization.

42173038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31826.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 42173038 is about 6494.0771476785. The cubic root of 42173038 is about 348.0793792145.

The spelling of 42173038 in words is "forty-two million, one hundred seventy-three thousand, thirty-eight".