42156038 has 8 divisors (see below), whose sum is σ = 63622488. Its totient is φ = 20948544.

The previous prime is 42156017. The next prime is 42156043. The reversal of 42156038 is 83065124.

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

It is a self number, because there is not a number n which added to its sum of digits gives 42156038.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64331 + ... + 64982.

It is an arithmetic number, because the mean of its divisors is an integer number (7952811).

Almost surely, 2^42156038 is an apocalyptic number.

42156038 is a deficient number, since it is larger than the sum of its proper divisors (21466450).

42156038 is a wasteful number, since it uses less digits than its factorization.

42156038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129478.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 42156038 is about 6492.7681307744. The cubic root of 42156038 is about 348.0326025297.

The spelling of 42156038 in words is "forty-two million, one hundred fifty-six thousand, thirty-eight".