169540328 has 8 divisors (see below), whose sum is σ = 317888130. Its totient is φ = 84770160.

The previous prime is 169540313. The next prime is 169540339. The reversal of 169540328 is 823045961.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 126742564 + 42797764 = 11258^2 + 6542^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 169540291 and 169540300.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10596263 + ... + 10596278.

Almost surely, 2^169540328 is an apocalyptic number.

It is an amenable number.

169540328 is a deficient number, since it is larger than the sum of its proper divisors (148347802).

169540328 is a wasteful number, since it uses less digits than its factorization.

169540328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21192547 (or 21192543 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 169540328 is about 13020.7652616887. The cubic root of 169540328 is about 553.4660757965.

The spelling of 169540328 in words is "one hundred sixty-nine million, five hundred forty thousand, three hundred twenty-eight".