169438464 has 108 divisors (see below), whose sum is σ = 526205316. Its totient is φ = 52125696.

The previous prime is 169438457. The next prime is 169438469. The reversal of 169438464 is 464834961.

169438464 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 20793600 + 148644864 = 4560^2 + 12192^2 .

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169438469) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27124 + ... + 32780.

Almost surely, 2^169438464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 169438464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263102658).

169438464 is an abundant number, since it is smaller than the sum of its proper divisors (356766852).

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

169438464 is a wasteful number, since it uses less digits than its factorization.

169438464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5692 (or 5675 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 169438464 is about 13016.8530759166. The cubic root of 169438464 is about 553.3552082447.

The spelling of 169438464 in words is "one hundred sixty-nine million, four hundred thirty-eight thousand, four hundred sixty-four".