169020072 has 96 divisors (see below), whose sum is σ = 495331200. Its totient is φ = 51758208.

The previous prime is 169020043. The next prime is 169020097. The reversal of 169020072 is 270020961.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 335773 + ... + 336275.

It is an arithmetic number, because the mean of its divisors is an integer number (5159700).

Almost surely, 2^169020072 is an apocalyptic number.

169020072 is a gapful number since it is divisible by the number (12) 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 169020072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247665600).

169020072 is an abundant number, since it is smaller than the sum of its proper divisors (326311128).

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

169020072 is a wasteful number, since it uses less digits than its factorization.

169020072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887 (or 880 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 169020072 is about 13000.7719770789. The cubic root of 169020072 is about 552.8993687791.

The spelling of 169020072 in words is "one hundred sixty-nine million, twenty thousand, seventy-two".