169118428 has 12 divisors (see below), whose sum is σ = 296969400. Its totient is φ = 84270032.

The previous prime is 169118419. The next prime is 169118429. The reversal of 169118428 is 824811961.

169118428 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169118429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70978 + ... + 73321.

It is an arithmetic number, because the mean of its divisors is an integer number (24747450).

Almost surely, 2^169118428 is an apocalyptic number.

It is an amenable number.

169118428 is a deficient number, since it is larger than the sum of its proper divisors (127850972).

169118428 is a wasteful number, since it uses less digits than its factorization.

169118428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144596 (or 144594 counting only the distinct ones).

The product of its digits is 27648, while the sum is 40.

The square root of 169118428 is about 13004.5541253824. The cubic root of 169118428 is about 553.0065955415.

The spelling of 169118428 in words is "one hundred sixty-nine million, one hundred eighteen thousand, four hundred twenty-eight".