42158022 has 16 divisors (see below), whose sum is σ = 86595312. Its totient is φ = 13672800.

The previous prime is 42158009. The next prime is 42158041. The reversal of 42158022 is 22085124.

It is a junction number, because it is equal to n+sod(n) for n = 42157983 and 42158001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94729 + ... + 95172.

It is an arithmetic number, because the mean of its divisors is an integer number (5412207).

Almost surely, 2^42158022 is an apocalyptic number.

42158022 is an abundant number, since it is smaller than the sum of its proper divisors (44437290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42158022 is a wasteful number, since it uses less digits than its factorization.

42158022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189943.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 42158022 is about 6492.9209143497. The cubic root of 42158022 is about 348.0380622921.

The spelling of 42158022 in words is "forty-two million, one hundred fifty-eight thousand, twenty-two".