169128480 has 192 divisors, whose sum is σ = 558472320. Its totient is φ = 42983424.

The previous prime is 169128473. The next prime is 169128523. The reversal of 169128480 is 84821961.

It is a super-2 number, since 2×169128480² = 57208885494220800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1580587 + ... + 1580693.

It is an arithmetic number, because the mean of its divisors is an integer number (2908710).

Almost surely, 2^169128480 is an apocalyptic number.

169128480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 169128480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279236160).

169128480 is an abundant number, since it is smaller than the sum of its proper divisors (389343840).

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

169128480 is a wasteful number, since it uses less digits than its factorization.

169128480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 169128480 is about 13004.9405996337. The cubic root of 169128480 is about 553.0175517931.

The spelling of 169128480 in words is "one hundred sixty-nine million, one hundred twenty-eight thousand, four hundred eighty".