162808840 has 16 divisors (see below), whose sum is σ = 366319980. Its totient is φ = 65123520.

The previous prime is 162808787. The next prime is 162808859. The reversal of 162808840 is 48808261.

It can be written as a sum of positive squares in 2 ways, for example, as 159415876 + 3392964 = 12626^2 + 1842^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 162808840.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2035071 + ... + 2035150.

Almost surely, 2^162808840 is an apocalyptic number.

162808840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162808840 is an abundant number, since it is smaller than the sum of its proper divisors (203511140).

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

162808840 is a wasteful number, since it uses less digits than its factorization.

162808840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4070232 (or 4070228 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 37.

The square root of 162808840 is about 12759.6567351947. The cubic root of 162808840 is about 546.0419312392.

The spelling of 162808840 in words is "one hundred sixty-two million, eight hundred eight thousand, eight hundred forty".