40306522 has 8 divisors (see below), whose sum is σ = 60487200. Its totient is φ = 20144124.

The previous prime is 40306517. The next prime is 40306531. The reversal of 40306522 is 22560304.

It is a happy number.

40306522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 40306493 and 40306502.

It is an unprimeable number.

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, 4729 + ... + 10147.

It is an arithmetic number, because the mean of its divisors is an integer number (7560900).

Almost surely, 2^40306522 is an apocalyptic number.

40306522 is a deficient number, since it is larger than the sum of its proper divisors (20180678).

40306522 is a wasteful number, since it uses less digits than its factorization.

40306522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9140.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 40306522 is about 6348.7417651059. The cubic root of 40306522 is about 342.8665427813.

Adding to 40306522 its reverse (22560304), we get a palindrome (62866826).

The spelling of 40306522 in words is "forty million, three hundred six thousand, five hundred twenty-two".