42004011 has 16 divisors (see below), whose sum is σ = 64281600. Its totient is φ = 23899008.

The previous prime is 42004009. The next prime is 42004013. The reversal of 42004011 is 11040024.

It is an interprime number because it is at equal distance from previous prime (42004009) and next prime (42004013).

It is not a de Polignac number, because 42004011 - 2¹ = 42004009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42004013) 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, 835 + ... + 9203.

It is an arithmetic number, because the mean of its divisors is an integer number (4017600).

Almost surely, 2^42004011 is an apocalyptic number.

42004011 is a deficient number, since it is larger than the sum of its proper divisors (22277589).

42004011 is a wasteful number, since it uses less digits than its factorization.

42004011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8618.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 42004011 is about 6481.0501463883. The cubic root of 42004011 is about 347.6137294879.

Adding to 42004011 its reverse (11040024), we get a palindrome (53044035).

The spelling of 42004011 in words is "forty-two million, four thousand, eleven".