198492351 has 16 divisors (see below), whose sum is σ = 266918400. Its totient is φ = 131202720.

The previous prime is 198492347. The next prime is 198492377. The reversal of 198492351 is 153294891.

It is not a de Polignac number, because 198492351 - 2² = 198492347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198492311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299961 + ... + 300621.

It is an arithmetic number, because the mean of its divisors is an integer number (16682400).

Almost surely, 2^198492351 is an apocalyptic number.

198492351 is a deficient number, since it is larger than the sum of its proper divisors (68426049).

198492351 is a wasteful number, since it uses less digits than its factorization.

198492351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366.

The product of its digits is 77760, while the sum is 42.

The square root of 198492351 is about 14088.7313481378. The cubic root of 198492351 is about 583.3303755678.

The spelling of 198492351 in words is "one hundred ninety-eight million, four hundred ninety-two thousand, three hundred fifty-one".