42011144 has 32 divisors (see below), whose sum is σ = 91375680.
Its totient is φ = 17734464.
The previous prime is 42011119. The next prime is 42011153. The reversal of 42011144 is 44111024.
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, 1847 + ... + 9350.
It is an arithmetic number, because the mean of its divisors is an integer number (2855490).
Almost surely, 242011144 is an apocalyptic number.
It is an amenable number.
42011144 is an abundant number, since it is smaller than the sum of its proper divisors (49364536).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
42011144 is a wasteful number, since it uses less digits than its factorization.
42011144 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11277 (or 11273 counting only the distinct ones).
The product of its (nonzero) digits is 128, while the sum is 17.
The square root of 42011144 is about 6481.6004196495.
The cubic root of 42011144 is about 347.6334052945.
Adding to 42011144 its reverse (44111024), we get a palindrome (86122168).
The spelling of 42011144 in words is "forty-two million, eleven thousand, one hundred forty-four".