522198440 has 32 divisors (see below), whose sum is σ = 1226033280. Its totient is φ = 199797312.

The previous prime is 522198437. The next prime is 522198497. The reversal of 522198440 is 44891225.

It is a self number, because there is not a number n which added to its sum of digits gives 522198440.

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 7 ways as a sum of consecutive naturals, for example, 282884 + ... + 284723.

It is an arithmetic number, because the mean of its divisors is an integer number (38313540).

Almost surely, 2^522198440 is an apocalyptic number.

It is an amenable number.

522198440 is an abundant number, since it is smaller than the sum of its proper divisors (703834840).

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

522198440 is a wasteful number, since it uses less digits than its factorization.

522198440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567641 (or 567637 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 522198440 is about 22851.6616463661. The cubic root of 522198440 is about 805.2768051330.

The spelling of 522198440 in words is "five hundred twenty-two million, one hundred ninety-eight thousand, four hundred forty".