42504136 has 16 divisors (see below), whose sum is σ = 79879500. Its totient is φ = 21202944.

The previous prime is 42504127. The next prime is 42504149. The reversal of 42504136 is 63140524.

It can be written as a sum of positive squares in 2 ways, for example, as 38068900 + 4435236 = 6170^2 + 2106^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42504136.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2325 + ... + 9508.

Almost surely, 2^42504136 is an apocalyptic number.

It is an amenable number.

42504136 is a deficient number, since it is larger than the sum of its proper divisors (37375364).

42504136 is a wasteful number, since it uses less digits than its factorization.

42504136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12288 (or 12284 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 42504136 is about 6519.5196142047. The cubic root of 42504136 is about 348.9879225055.

The spelling of 42504136 in words is "forty-two million, five hundred four thousand, one hundred thirty-six".