162643338 has 96 divisors (see below), whose sum is σ = 417493440. Its totient is φ = 45112320.

The previous prime is 162643337. The next prime is 162643361. The reversal of 162643338 is 833346261.

162643338 is a `hidden beast` number, since 1 + 6 + 2 + 643 + 3 + 3 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (162643331) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 460570 + ... + 460922.

It is an arithmetic number, because the mean of its divisors is an integer number (4348890).

Almost surely, 2^162643338 is an apocalyptic number.

162643338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 162643338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208746720).

162643338 is an abundant number, since it is smaller than the sum of its proper divisors (254850102).

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

162643338 is a wasteful number, since it uses less digits than its factorization.

162643338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564 (or 561 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 162643338 is about 12753.1697236413. The cubic root of 162643338 is about 545.8568436830.

Adding to 162643338 its reverse (833346261), we get a palindrome (995989599).

The spelling of 162643338 in words is "one hundred sixty-two million, six hundred forty-three thousand, three hundred thirty-eight".