42011844 has 48 divisors (see below), whose sum is σ = 112444416. Its totient is φ = 11959200.

The previous prime is 42011821. The next prime is 42011857. The reversal of 42011844 is 44811024.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27049 + ... + 28559.

It is an arithmetic number, because the mean of its divisors is an integer number (2342592).

Almost surely, 2^42011844 is an apocalyptic number.

It is an amenable number.

42011844 is an abundant number, since it is smaller than the sum of its proper divisors (70432572).

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

42011844 is a wasteful number, since it uses less digits than its factorization.

42011844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856 (or 1854 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 42011844 is about 6481.6544184336. The cubic root of 42011844 is about 347.6353360682.

Adding to 42011844 its reverse (44811024), we get a palindrome (86822868).

The spelling of 42011844 in words is "forty-two million, eleven thousand, eight hundred forty-four".