169738428 has 24 divisors (see below), whose sum is σ = 396468688. Its totient is φ = 56520576.

The previous prime is 169738409. The next prime is 169738433. The reversal of 169738428 is 824837961.

It is a super-2 number, since 2×169738428² = 57622267879822368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5550 + ... + 19242.

Almost surely, 2^169738428 is an apocalyptic number.

It is an amenable number.

169738428 is an abundant number, since it is smaller than the sum of its proper divisors (226730260).

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

169738428 is a wasteful number, since it uses less digits than its factorization.

169738428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14733 (or 14731 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The square root of 169738428 is about 13028.3701206252. The cubic root of 169738428 is about 553.6815583602.

The spelling of 169738428 in words is "one hundred sixty-nine million, seven hundred thirty-eight thousand, four hundred twenty-eight".