169238928 has 40 divisors (see below), whose sum is σ = 460213600. Its totient is φ = 53443584.

The previous prime is 169238921. The next prime is 169238941. The reversal of 169238928 is 829832961.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (169238921) 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, 91873 + ... + 93696.

It is an arithmetic number, because the mean of its divisors is an integer number (11505340).

Almost surely, 2^169238928 is an apocalyptic number.

It is an amenable number.

169238928 is an abundant number, since it is smaller than the sum of its proper divisors (290974672).

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

169238928 is a wasteful number, since it uses less digits than its factorization.

169238928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185599 (or 185593 counting only the distinct ones).

The product of its digits is 373248, while the sum is 48.

The square root of 169238928 is about 13009.1862927702. The cubic root of 169238928 is about 553.1379068264.

The spelling of 169238928 in words is "one hundred sixty-nine million, two hundred thirty-eight thousand, nine hundred twenty-eight".