198038974 has 32 divisors (see below), whose sum is σ = 353304576. Its totient is φ = 81466560.

The previous prime is 198038921. The next prime is 198038989. The reversal of 198038974 is 479830891.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53322 + ... + 56914.

It is an arithmetic number, because the mean of its divisors is an integer number (11040768).

Almost surely, 2^198038974 is an apocalyptic number.

198038974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

198038974 is a deficient number, since it is larger than the sum of its proper divisors (155265602).

198038974 is a wasteful number, since it uses less digits than its factorization.

198038974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3760.

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 198038974 is about 14072.6320921141. The cubic root of 198038974 is about 582.8859080806.

The spelling of 198038974 in words is "one hundred ninety-eight million, thirty-eight thousand, nine hundred seventy-four".