40287522 has 16 divisors (see below), whose sum is σ = 87900192. Its totient is φ = 12208320.

The previous prime is 40287509. The next prime is 40287529. The reversal of 40287522 is 22578204.

40287522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 40287522.

It is not an unprimeable number, because it can be changed into a prime (40287529) 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 7 ways as a sum of consecutive naturals, for example, 305143 + ... + 305274.

It is an arithmetic number, because the mean of its divisors is an integer number (5493762).

Almost surely, 2^40287522 is an apocalyptic number.

40287522 is an abundant number, since it is smaller than the sum of its proper divisors (47612670).

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

40287522 is a wasteful number, since it uses less digits than its factorization.

40287522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610433.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 40287522 is about 6347.2452292313. The cubic root of 40287522 is about 342.8126599532.

The spelling of 40287522 in words is "forty million, two hundred eighty-seven thousand, five hundred twenty-two".