198745072 has 10 divisors (see below), whose sum is σ = 385068608. Its totient is φ = 99372528.

The previous prime is 198745067. The next prime is 198745133. The reversal of 198745072 is 270547891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6210768 + ... + 6210799.

Almost surely, 2^198745072 is an apocalyptic number.

It is an amenable number.

198745072 is a deficient number, since it is larger than the sum of its proper divisors (186323536).

198745072 is a wasteful number, since it uses less digits than its factorization.

198745072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12421575 (or 12421569 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 198745072 is about 14097.6974006396. The cubic root of 198745072 is about 583.5778365139.

The spelling of 198745072 in words is "one hundred ninety-eight million, seven hundred forty-five thousand, seventy-two".