198424774 has 16 divisors (see below), whose sum is σ = 302184000. Its totient is φ = 97703424.

The previous prime is 198424763. The next prime is 198424777. The reversal of 198424774 is 477424891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198424777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69544 + ... + 72340.

It is an arithmetic number, because the mean of its divisors is an integer number (18886500).

Almost surely, 2^198424774 is an apocalyptic number.

198424774 is a deficient number, since it is larger than the sum of its proper divisors (103759226).

198424774 is a wasteful number, since it uses less digits than its factorization.

198424774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3327.

The product of its digits is 451584, while the sum is 46.

The square root of 198424774 is about 14086.3328797810. The cubic root of 198424774 is about 583.2641695050.

The spelling of 198424774 in words is "one hundred ninety-eight million, four hundred twenty-four thousand, seven hundred seventy-four".