170389452 has 12 divisors (see below), whose sum is σ = 397575416. Its totient is φ = 56796480.

The previous prime is 170389447. The next prime is 170389459. The reversal of 170389452 is 254983071.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 170389452.

It is not an unprimeable number, because it can be changed into a prime (170389459) 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 3 ways as a sum of consecutive naturals, for example, 7099549 + ... + 7099572.

Almost surely, 2^170389452 is an apocalyptic number.

170389452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

170389452 is an abundant number, since it is smaller than the sum of its proper divisors (227185964).

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

170389452 is a wasteful number, since it uses less digits than its factorization.

170389452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14199128 (or 14199126 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 170389452 is about 13053.3310691180. The cubic root of 170389452 is about 554.3885287341.

The spelling of 170389452 in words is "one hundred seventy million, three hundred eighty-nine thousand, four hundred fifty-two".