198622400 has 42 divisors (see below), whose sum is σ = 488739180. Its totient is φ = 79448320.

The previous prime is 198622397. The next prime is 198622433. The reversal of 198622400 is 4226891.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60470 + ... + 63669.

Almost surely, 2^198622400 is an apocalyptic number.

198622400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198622400 is an abundant number, since it is smaller than the sum of its proper divisors (290116780).

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

198622400 is a wasteful number, since it uses less digits than its factorization.

198622400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124161 (or 124146 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 198622400 is about 14093.3459476449. The cubic root of 198622400 is about 583.4577439859.

The spelling of 198622400 in words is "one hundred ninety-eight million, six hundred twenty-two thousand, four hundred".