165442446 has 32 divisors (see below), whose sum is σ = 395932320. Its totient is φ = 50905152.

The previous prime is 165442439. The next prime is 165442447. The reversal of 165442446 is 644244561.

It is a self number, because there is not a number n which added to its sum of digits gives 165442446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165442447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117135 + ... + 118538.

It is an arithmetic number, because the mean of its divisors is an integer number (12372885).

Almost surely, 2^165442446 is an apocalyptic number.

165442446 is an abundant number, since it is smaller than the sum of its proper divisors (230489874).

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

165442446 is a wasteful number, since it uses less digits than its factorization.

165442446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235697 (or 235691 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 165442446 is about 12862.4432360263. The cubic root of 165442446 is about 548.9704663261.

It can be divided in two parts, 1654 and 42446, that added together give a square (44100 = 210²).

The spelling of 165442446 in words is "one hundred sixty-five million, four hundred forty-two thousand, four hundred forty-six".