42144558 has 16 divisors (see below), whose sum is σ = 86249856. Its totient is φ = 13721400.

The previous prime is 42144551. The next prime is 42144559. The reversal of 42144558 is 85544124.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42144551) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 81418 + ... + 81933.

It is an arithmetic number, because the mean of its divisors is an integer number (5390616).

Almost surely, 2^42144558 is an apocalyptic number.

42144558 is an abundant number, since it is smaller than the sum of its proper divisors (44105298).

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

42144558 is a wasteful number, since it uses less digits than its factorization.

42144558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163399.

The product of its digits is 25600, while the sum is 33.

The square root of 42144558 is about 6491.8840100544. The cubic root of 42144558 is about 348.0010073957.

The spelling of 42144558 in words is "forty-two million, one hundred forty-four thousand, five hundred fifty-eight".