42004122 has 32 divisors (see below), whose sum is σ = 87497280. Its totient is φ = 13426560.

The previous prime is 42004111. The next prime is 42004129. The reversal of 42004122 is 22140024.

It is not an unprimeable number, because it can be changed into a prime (42004129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27622 + ... + 29102.

It is an arithmetic number, because the mean of its divisors is an integer number (2734290).

Almost surely, 2^42004122 is an apocalyptic number.

42004122 is an abundant number, since it is smaller than the sum of its proper divisors (45493158).

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

42004122 is a wasteful number, since it uses less digits than its factorization.

42004122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 42004122 is about 6481.0587098097. The cubic root of 42004122 is about 347.6140356895.

Adding to 42004122 its reverse (22140024), we get a palindrome (64144146).

The spelling of 42004122 in words is "forty-two million, four thousand, one hundred twenty-two".