165428430 has 16 divisors (see below), whose sum is σ = 397028304. Its totient is φ = 44114240.

The previous prime is 165428429. The next prime is 165428437. The reversal of 165428430 is 34824561.

It is a junction number, because it is equal to n+sod(n) for n = 165428391 and 165428400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165428437) 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, 2757111 + ... + 2757170.

It is an arithmetic number, because the mean of its divisors is an integer number (24814269).

Almost surely, 2^165428430 is an apocalyptic number.

165428430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165428430 is an abundant number, since it is smaller than the sum of its proper divisors (231599874).

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

165428430 is a wasteful number, since it uses less digits than its factorization.

165428430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5514291.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 165428430 is about 12861.8983824317. The cubic root of 165428430 is about 548.9549632765.

The spelling of 165428430 in words is "one hundred sixty-five million, four hundred twenty-eight thousand, four hundred thirty".