169740198 has 20 divisors (see below), whose sum is σ = 380344140. Its totient is φ = 56580012.

The previous prime is 169740187. The next prime is 169740211. The reversal of 169740198 is 891047961.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 523728 + ... + 524051.

It is an arithmetic number, because the mean of its divisors is an integer number (19017207).

Almost surely, 2^169740198 is an apocalyptic number.

169740198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

169740198 is an abundant number, since it is smaller than the sum of its proper divisors (210603942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

169740198 is a wasteful number, since it uses less digits than its factorization.

169740198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047793 (or 1047784 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 169740198 is about 13028.4380491293. The cubic root of 169740198 is about 553.6834829155.

The spelling of 169740198 in words is "one hundred sixty-nine million, seven hundred forty thousand, one hundred ninety-eight".