42516808 has 8 divisors (see below), whose sum is σ = 79719030. Its totient is φ = 21258400.

The previous prime is 42516781. The next prime is 42516829. The reversal of 42516808 is 80861524.

It can be written as a sum of positive squares in only one way, i.e., 30669444 + 11847364 = 5538^2 + 3442^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2657293 + ... + 2657308.

Almost surely, 2^42516808 is an apocalyptic number.

It is an amenable number.

42516808 is a deficient number, since it is larger than the sum of its proper divisors (37202222).

42516808 is a wasteful number, since it uses less digits than its factorization.

42516808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5314607 (or 5314603 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 42516808 is about 6520.4913925256. The cubic root of 42516808 is about 349.0226009780.

The spelling of 42516808 in words is "forty-two million, five hundred sixteen thousand, eight hundred eight".