42156022234 has 8 divisors (see below), whose sum is σ = 63283017888. Its totient is φ = 21061682940.

The previous prime is 42156022177. The next prime is 42156022277. The reversal of 42156022234 is 43222065124.

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 = 42156022196 and 42156022205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8160862 + ... + 8166025.

It is an arithmetic number, because the mean of its divisors is an integer number (7910377236).

Almost surely, 2^42156022234 is an apocalyptic number.

42156022234 is a deficient number, since it is larger than the sum of its proper divisors (21126995654).

42156022234 is a wasteful number, since it uses less digits than its factorization.

42156022234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16328180.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 42156022234 its reverse (43222065124), we get a palindrome (85378087358).

The spelling of 42156022234 in words is "forty-two billion, one hundred fifty-six million, twenty-two thousand, two hundred thirty-four".