158436042 has 16 divisors (see below), whose sum is σ = 319949760. Its totient is φ = 52299072.

The previous prime is 158436011. The next prime is 158436043. The reversal of 158436042 is 240634851.

It is a junction number, because it is equal to n+sod(n) for n = 158435994 and 158436012.

It is not an unprimeable number, because it can be changed into a prime (158436043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127567 + ... + 128802.

It is an arithmetic number, because the mean of its divisors is an integer number (19996860).

Almost surely, 2^158436042 is an apocalyptic number.

158436042 is an abundant number, since it is smaller than the sum of its proper divisors (161513718).

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

158436042 is a wasteful number, since it uses less digits than its factorization.

158436042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256477.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 158436042 is about 12587.1379590437. The cubic root of 158436042 is about 541.1088804969.

The spelling of 158436042 in words is "one hundred fifty-eight million, four hundred thirty-six thousand, forty-two".