42580136 has 8 divisors (see below), whose sum is σ = 79837770. Its totient is φ = 21290064.

The previous prime is 42580133. The next prime is 42580141. The reversal of 42580136 is 63108524.

It can be written as a sum of positive squares in only one way, i.e., 26977636 + 15602500 = 5194^2 + 3950^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 42580099 and 42580108.

It is not an unprimeable number, because it can be changed into a prime (42580133) by changing a digit.

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 as a sum of consecutive naturals, namely, 2661251 + ... + 2661266.

Almost surely, 2^42580136 is an apocalyptic number.

It is an amenable number.

42580136 is a deficient number, since it is larger than the sum of its proper divisors (37257634).

42580136 is a wasteful number, since it uses less digits than its factorization.

42580136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5322523 (or 5322519 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 42580136 is about 6525.3456613424. The cubic root of 42580136 is about 349.1958025849.

The spelling of 42580136 in words is "forty-two million, five hundred eighty thousand, one hundred thirty-six".