198526464 has 100 divisors (see below), whose sum is σ = 592673004. Its totient is φ = 66161664.

The previous prime is 198526441. The next prime is 198526487. The reversal of 198526464 is 464625891.

It is an interprime number because it is at equal distance from previous prime (198526441) and next prime (198526487).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 39079 + ... + 43865.

Almost surely, 2^198526464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198526464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296336502).

198526464 is an abundant number, since it is smaller than the sum of its proper divisors (394146540).

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

198526464 is an frugal number, since it uses more digits than its factorization.

198526464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4817 (or 4792 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 198526464 is about 14089.9419445220. The cubic root of 198526464 is about 583.3637908088.

The spelling of 198526464 in words is "one hundred ninety-eight million, five hundred twenty-six thousand, four hundred sixty-four".