8520442 has 32 divisors (see below), whose sum is σ = 15593472. Its totient is φ = 3412464.

The previous prime is 8520437. The next prime is 8520481. The reversal of 8520442 is 2440258.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14853 + ... + 15415.

It is an arithmetic number, because the mean of its divisors is an integer number (487296).

Almost surely, 2^8520442 is an apocalyptic number.

8520442 is a deficient number, since it is larger than the sum of its proper divisors (7073030).

8520442 is a wasteful number, since it uses less digits than its factorization.

8520442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 8520442 is about 2918.9796162358. The cubic root of 8520442 is about 204.2462264599.

The spelling of 8520442 in words is "eight million, five hundred twenty thousand, four hundred forty-two".