169020432 has 200 divisors, whose sum is σ = 578074112. Its totient is φ = 46656000.

The previous prime is 169020407. The next prime is 169020433. The reversal of 169020432 is 234020961.

169020432 is an esthetic number in base 5, because in such base its adjacent digits differ by 1.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 169020396 and 169020405.

It is not an unprimeable number, because it can be changed into a prime (169020433) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 280932 + ... + 281532.

Almost surely, 2^169020432 is an apocalyptic number.

169020432 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 169020432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289037056).

169020432 is an abundant number, since it is smaller than the sum of its proper divisors (409053680).

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

169020432 is a wasteful number, since it uses less digits than its factorization.

169020432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 169020432 is about 13000.7858224032. The cubic root of 169020432 is about 552.8997613235.

It can be divided in two parts, 1690 and 20432, that added together give a palindrome (22122).

The spelling of 169020432 in words is "one hundred sixty-nine million, twenty thousand, four hundred thirty-two".