198622464 has 36 divisors (see below), whose sum is σ = 528627456. Its totient is φ = 66207232.

The previous prime is 198622451. The next prime is 198622469. The reversal of 198622464 is 464226891.

198622464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198622469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128544 + ... + 130079.

It is an arithmetic number, because the mean of its divisors is an integer number (14684096).

Almost surely, 2^198622464 is an apocalyptic number.

It is an amenable number.

198622464 is an abundant number, since it is smaller than the sum of its proper divisors (330004992).

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

198622464 is an equidigital number, since it uses as much as digits as its factorization.

198622464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258642 (or 258628 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 198622464 is about 14093.3482182198. The cubic root of 198622464 is about 583.4578066531.

The spelling of 198622464 in words is "one hundred ninety-eight million, six hundred twenty-two thousand, four hundred sixty-four".