198201742 has 8 divisors (see below), whose sum is σ = 314791056. Its totient is φ = 93271392.

The previous prime is 198201739. The next prime is 198201761. The reversal of 198201742 is 247102891.

198201742 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 5829463 = 198201742 / (1 + 9 + 8 + 2 + 0 + 1 + 7 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 198201698 and 198201707.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2914698 + ... + 2914765.

It is an arithmetic number, because the mean of its divisors is an integer number (39348882).

Almost surely, 2^198201742 is an apocalyptic number.

198201742 is a deficient number, since it is larger than the sum of its proper divisors (116589314).

198201742 is a wasteful number, since it uses less digits than its factorization.

198201742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5829482.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 198201742 is about 14078.4140442026. The cubic root of 198201742 is about 583.0455554315.

The spelling of 198201742 in words is "one hundred ninety-eight million, two hundred one thousand, seven hundred forty-two".