169938 has 20 divisors (see below), whose sum is σ = 381150. Its totient is φ = 56592.

The previous prime is 169937. The next prime is 169943. The reversal of 169938 is 839961.

It can be written as a sum of positive squares in only one way, i.e., 110889 + 59049 = 333^2 + 243^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (169933) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 363 + ... + 686.

2¹⁶⁹⁹³⁸ is an apocalyptic number.

169938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

169938 is an abundant number, since it is smaller than the sum of its proper divisors (211212).

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

169938 is a wasteful number, since it uses less digits than its factorization.

169938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063 (or 1054 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 169938 is about 412.2353696616. The cubic root of 169938 is about 55.3898472622.

The spelling of 169938 in words is "one hundred sixty-nine thousand, nine hundred thirty-eight".