42036287 has 4 divisors (see below), whose sum is σ = 42076680. Its totient is φ = 41995896.

The previous prime is 42036277. The next prime is 42036307. The reversal of 42036287 is 78263024.

42036287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42036287 - 2⁴ = 42036271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42036277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18593 + ... + 20730.

It is an arithmetic number, because the mean of its divisors is an integer number (10519170).

Almost surely, 2^42036287 is an apocalyptic number.

42036287 is a deficient number, since it is larger than the sum of its proper divisors (40393).

42036287 is a wasteful number, since it uses less digits than its factorization.

42036287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40392.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 42036287 is about 6483.5396968014. The cubic root of 42036287 is about 347.7027424811.

The spelling of 42036287 in words is "forty-two million, thirty-six thousand, two hundred eighty-seven".