198473738 has 16 divisors (see below), whose sum is σ = 311445000. Its totient is φ = 94735872.

The previous prime is 198473719. The next prime is 198473741. The reversal of 198473738 is 837374891.

It can be written as a sum of positive squares in 4 ways, for example, as 78198649 + 120275089 = 8843^2 + 10967^2 .

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 7 ways as a sum of consecutive naturals, for example, 14063 + ... + 24386.

Almost surely, 2^198473738 is an apocalyptic number.

198473738 is a deficient number, since it is larger than the sum of its proper divisors (112971262).

198473738 is a wasteful number, since it uses less digits than its factorization.

198473738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38569.

The product of its digits is 1016064, while the sum is 50.

The square root of 198473738 is about 14088.0707692714. The cubic root of 198473738 is about 583.3121416701.

The spelling of 198473738 in words is "one hundred ninety-eight million, four hundred seventy-three thousand, seven hundred thirty-eight".