42011142 has 16 divisors (see below), whose sum is σ = 86072112. Its totient is φ = 13662080.

The previous prime is 42011119. The next prime is 42011153. The reversal of 42011142 is 24111024.

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 7 ways as a sum of consecutive naturals, for example, 85143 + ... + 85634.

It is an arithmetic number, because the mean of its divisors is an integer number (5379507).

Almost surely, 2^42011142 is an apocalyptic number.

42011142 is an abundant number, since it is smaller than the sum of its proper divisors (44060970).

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

42011142 is a wasteful number, since it uses less digits than its factorization.

42011142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170823.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 42011142 is about 6481.6002653666. The cubic root of 42011142 is about 347.6333997780.

Adding to 42011142 its reverse (24111024), we get a palindrome (66122166).

The spelling of 42011142 in words is "forty-two million, eleven thousand, one hundred forty-two".