522320998 has 8 divisors (see below), whose sum is σ = 784874808. Its totient is φ = 260696064.

The previous prime is 522320983. The next prime is 522320999. The reversal of 522320998 is 899023225.

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

It is a self number, because there is not a number n which added to its sum of digits gives 522320998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522320999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230811 + ... + 233062.

It is an arithmetic number, because the mean of its divisors is an integer number (98109351).

Almost surely, 2^522320998 is an apocalyptic number.

522320998 is a deficient number, since it is larger than the sum of its proper divisors (262553810).

522320998 is a wasteful number, since it uses less digits than its factorization.

522320998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464438.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 522320998 is about 22854.3430883498. The cubic root of 522320998 is about 805.3397986792.

The spelling of 522320998 in words is "five hundred twenty-two million, three hundred twenty thousand, nine hundred ninety-eight".