198469438 has 32 divisors (see below), whose sum is σ = 325140480. Its totient is φ = 90594240.

The previous prime is 198469433. The next prime is 198469463. The reversal of 198469438 is 834964891.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198469433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87523 + ... + 89761.

It is an arithmetic number, because the mean of its divisors is an integer number (10160640).

Almost surely, 2^198469438 is an apocalyptic number.

198469438 is a deficient number, since it is larger than the sum of its proper divisors (126671042).

198469438 is a wasteful number, since it uses less digits than its factorization.

198469438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352.

The product of its digits is 1492992, while the sum is 52.

The square root of 198469438 is about 14087.9181570593. The cubic root of 198469438 is about 583.3079290887.

The spelling of 198469438 in words is "one hundred ninety-eight million, four hundred sixty-nine thousand, four hundred thirty-eight".