42111004 has 12 divisors (see below), whose sum is σ = 79363144. Its totient is φ = 19435824.

The previous prime is 42111001. The next prime is 42111007. The reversal of 42111004 is 40011124.

It is an interprime number because it is at equal distance from previous prime (42111001) and next prime (42111007).

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42111001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404862 + ... + 404965.

Almost surely, 2^42111004 is an apocalyptic number.

It is an amenable number.

42111004 is a deficient number, since it is larger than the sum of its proper divisors (37252140).

42111004 is a wasteful number, since it uses less digits than its factorization.

42111004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809844 (or 809842 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 42111004 is about 6489.2991917464. The cubic root of 42111004 is about 347.9086275281.

Adding to 42111004 its reverse (40011124), we get a palindrome (82122128).

The spelling of 42111004 in words is "forty-two million, one hundred eleven thousand, four".