169408098 has 20 divisors (see below), whose sum is σ = 379599990. Its totient is φ = 56469312.

The previous prime is 169408091. The next prime is 169408157. The reversal of 169408098 is 890804961.

It can be written as a sum of positive squares in only one way, i.e., 96766569 + 72641529 = 9837^2 + 8523^2 .

It is not an unprimeable number, because it can be changed into a prime (169408091) by changing a digit.

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, 522703 + ... + 523026.

Almost surely, 2^169408098 is an apocalyptic number.

169408098 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

169408098 is an abundant number, since it is smaller than the sum of its proper divisors (210191892).

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

169408098 is a wasteful number, since it uses less digits than its factorization.

169408098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045743 (or 1045734 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 169408098 is about 13015.6866126993. The cubic root of 169408098 is about 553.3221496586.

The spelling of 169408098 in words is "one hundred sixty-nine million, four hundred eight thousand, ninety-eight".