42611004 has 36 divisors (see below), whose sum is σ = 107931096. Its totient is φ = 14174688.

The previous prime is 42611003. The next prime is 42611011. The reversal of 42611004 is 40011624.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42611003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23722 + ... + 25454.

It is an arithmetic number, because the mean of its divisors is an integer number (2998086).

Almost surely, 2^42611004 is an apocalyptic number.

It is an amenable number.

42611004 is an abundant number, since it is smaller than the sum of its proper divisors (65320092).

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

42611004 is a wasteful number, since it uses less digits than its factorization.

42611004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426 (or 2421 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 42611004 is about 6527.7104715206. The cubic root of 42611004 is about 349.2801640845.

Adding to 42611004 its reverse (40011624), we get a palindrome (82622628).

The spelling of 42611004 in words is "forty-two million, six hundred eleven thousand, four".