42043504 has 60 divisors (see below), whose sum is σ = 89291160. Its totient is φ = 19152000.

The previous prime is 42043483. The next prime is 42043513. The reversal of 42043504 is 40534024.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167379 + ... + 167629.

It is an arithmetic number, because the mean of its divisors is an integer number (1488186).

Almost surely, 2^42043504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42043504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44645580).

42043504 is an abundant number, since it is smaller than the sum of its proper divisors (47247656).

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

42043504 is a wasteful number, since it uses less digits than its factorization.

42043504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 301 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 42043504 is about 6484.0962361766. The cubic root of 42043504 is about 347.7226397911.

Adding to 42043504 its reverse (40534024), we get a palindrome (82577528).

The spelling of 42043504 in words is "forty-two million, forty-three thousand, five hundred four".