198334451 has 32 divisors (see below), whose sum is σ = 247587840. Its totient is φ = 155143296.

The previous prime is 198334429. The next prime is 198334457. The reversal of 198334451 is 154433891.

It is a de Polignac number, because none of the positive numbers 2^k-198334451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198334457) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 499385 + ... + 499781.

It is an arithmetic number, because the mean of its divisors is an integer number (7737120).

Almost surely, 2^198334451 is an apocalyptic number.

198334451 is a deficient number, since it is larger than the sum of its proper divisors (49253389).

198334451 is a wasteful number, since it uses less digits than its factorization.

198334451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563.

The product of its digits is 51840, while the sum is 38.

The square root of 198334451 is about 14083.1264639639. The cubic root of 198334451 is about 583.1756554145.

The spelling of 198334451 in words is "one hundred ninety-eight million, three hundred thirty-four thousand, four hundred fifty-one".