169913472 has 64 divisors (see below), whose sum is σ = 463569600. Its totient is φ = 55102464.

The previous prime is 169913459. The next prime is 169913479. The reversal of 169913472 is 274319961.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (169913479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8229 + ... + 20187.

It is an arithmetic number, because the mean of its divisors is an integer number (7243275).

Almost surely, 2^169913472 is an apocalyptic number.

169913472 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 169913472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231784800).

169913472 is an abundant number, since it is smaller than the sum of its proper divisors (293656128).

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

169913472 is a wasteful number, since it uses less digits than its factorization.

169913472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12013 (or 12001 counting only the distinct ones).

The product of its digits is 81648, while the sum is 42.

The square root of 169913472 is about 13035.0861907392. The cubic root of 169913472 is about 553.8718223621.

The spelling of 169913472 in words is "one hundred sixty-nine million, nine hundred thirteen thousand, four hundred seventy-two".