198437474 has 8 divisors (see below), whose sum is σ = 301848768. Its totient is φ = 97821220.

The previous prime is 198437471. The next prime is 198437483. The reversal of 198437474 is 474734891.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (198437471) 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, 698582 + ... + 698865.

It is an arithmetic number, because the mean of its divisors is an integer number (37731096).

Almost surely, 2^198437474 is an apocalyptic number.

198437474 is a deficient number, since it is larger than the sum of its proper divisors (103411294).

198437474 is a wasteful number, since it uses less digits than its factorization.

198437474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397520.

The product of its digits is 677376, while the sum is 47.

The square root of 198437474 is about 14086.7836641300. The cubic root of 198437474 is about 583.2766130065.

The spelling of 198437474 in words is "one hundred ninety-eight million, four hundred thirty-seven thousand, four hundred seventy-four".