198469439 has 8 divisors (see below), whose sum is σ = 227026560. Its totient is φ = 169963416.

The previous prime is 198469433. The next prime is 198469463. The reversal of 198469439 is 934964891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 198469439 - 2¹² = 198465343 is a prime.

It is a Duffinian 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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4049 + ... + 20330.

It is an arithmetic number, because the mean of its divisors is an integer number (28378320).

Almost surely, 2^198469439 is an apocalyptic number.

198469439 is a deficient number, since it is larger than the sum of its proper divisors (28557121).

198469439 is a wasteful number, since it uses less digits than its factorization.

198469439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25549.

The product of its digits is 1679616, while the sum is 53.

The square root of 198469439 is about 14087.9181925507. The cubic root of 198469439 is about 583.3079300683.

The spelling of 198469439 in words is "one hundred ninety-eight million, four hundred sixty-nine thousand, four hundred thirty-nine".