198695742 has 16 divisors (see below), whose sum is σ = 454161792. Its totient is φ = 56770200.

The previous prime is 198695719. The next prime is 198695747. The reversal of 198695742 is 247596891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198695747) 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, 2365384 + ... + 2365467.

It is an arithmetic number, because the mean of its divisors is an integer number (28385112).

Almost surely, 2^198695742 is an apocalyptic number.

198695742 is an abundant number, since it is smaller than the sum of its proper divisors (255466050).

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

198695742 is a wasteful number, since it uses less digits than its factorization.

198695742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4730863.

The product of its digits is 1088640, while the sum is 51.

The square root of 198695742 is about 14095.9477155671. The cubic root of 198695742 is about 583.5295497371.

The spelling of 198695742 in words is "one hundred ninety-eight million, six hundred ninety-five thousand, seven hundred forty-two".