198722403 has 40 divisors (see below), whose sum is σ = 325433856. Its totient is φ = 119847600.

The previous prime is 198722351. The next prime is 198722411. The reversal of 198722403 is 304227891.

198722403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 198722403 - 2¹⁰ = 198721379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198722483) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 241050 + ... + 241872.

Almost surely, 2^198722403 is an apocalyptic number.

198722403 is a deficient number, since it is larger than the sum of its proper divisors (126711453).

198722403 is a wasteful number, since it uses less digits than its factorization.

198722403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117 (or 1108 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 198722403 is about 14096.8933811674. The cubic root of 198722403 is about 583.5556479068. Note that the first 3 decimals are identical.

The spelling of 198722403 in words is "one hundred ninety-eight million, seven hundred twenty-two thousand, four hundred three".