162423442 has 8 divisors (see below), whose sum is σ = 243717516. Its totient is φ = 81184272.

The previous prime is 162423439. The next prime is 162423497. The reversal of 162423442 is 244324261.

It can be written as a sum of positive squares in 2 ways, for example, as 108972721 + 53450721 = 10439^2 + 7311^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×162423442² = 52762749022254728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 162423442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5293 + ... + 18784.

Almost surely, 2^162423442 is an apocalyptic number.

162423442 is a deficient number, since it is larger than the sum of its proper divisors (81294074).

162423442 is a wasteful number, since it uses less digits than its factorization.

162423442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27452.

The product of its digits is 9216, while the sum is 28.

The square root of 162423442 is about 12744.5455784033. The cubic root of 162423442 is about 545.6107307804.

The spelling of 162423442 in words is "one hundred sixty-two million, four hundred twenty-three thousand, four hundred forty-two".