42208504 has 32 divisors (see below), whose sum is σ = 86047920. Its totient is φ = 19293696.

The previous prime is 42208493. The next prime is 42208513. The reversal of 42208504 is 40580224.

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 7 ways as a sum of consecutive naturals, for example, 9232 + ... + 13024.

Almost surely, 2^42208504 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 42208504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43023960).

42208504 is an abundant number, since it is smaller than the sum of its proper divisors (43839416).

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

42208504 is a wasteful number, since it uses less digits than its factorization.

42208504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3919 (or 3915 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 42208504 is about 6496.8072158561. The cubic root of 42208504 is about 348.1769259324.

Adding to 42208504 its reverse (40580224), we get a palindrome (82788728).

The spelling of 42208504 in words is "forty-two million, two hundred eight thousand, five hundred four".