42004860 has 24 divisors (see below), whose sum is σ = 117613776. Its totient is φ = 11201280.

The previous prime is 42004843. The next prime is 42004861. The reversal of 42004860 is 6840024.

It is a self number, because there is not a number n which added to its sum of digits gives 42004860.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42004861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349981 + ... + 350100.

It is an arithmetic number, because the mean of its divisors is an integer number (4900574).

Almost surely, 2^42004860 is an apocalyptic number.

It is an amenable number.

42004860 is an abundant number, since it is smaller than the sum of its proper divisors (75608916).

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

42004860 is a wasteful number, since it uses less digits than its factorization.

42004860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700093 (or 700091 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 42004860 is about 6481.1156447019. The cubic root of 42004860 is about 347.6160715029.

Adding to 42004860 its reverse (6840024), we get a palindrome (48844884).

The spelling of 42004860 in words is "forty-two million, four thousand, eight hundred sixty".