198374635 has 8 divisors (see below), whose sum is σ = 239924736. Its totient is φ = 157449600.

The previous prime is 198374621. The next prime is 198374641. The reversal of 198374635 is 536473891.

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

It is not a de Polignac number, because 198374635 - 2²⁷ = 64156907 is a prime.

It is a super-2 number, since 2×198374635² = 78704991622766450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155566 + ... + 156835.

It is an arithmetic number, because the mean of its divisors is an integer number (29990592).

Almost surely, 2^198374635 is an apocalyptic number.

198374635 is a deficient number, since it is larger than the sum of its proper divisors (41550101).

198374635 is a wasteful number, since it uses less digits than its factorization.

198374635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312533.

The product of its digits is 544320, while the sum is 46.

The square root of 198374635 is about 14084.5530635516. The cubic root of 198374635 is about 583.2150379624.

The spelling of 198374635 in words is "one hundred ninety-eight million, three hundred seventy-four thousand, six hundred thirty-five".