162804420 has 72 divisors (see below), whose sum is σ = 500834880. Its totient is φ = 42799680.

The previous prime is 162804409. The next prime is 162804443. The reversal of 162804420 is 24408261.

162804420 is a `hidden beast` number, since 162 + 80 + 4 + 420 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6411 + ... + 19149.

It is an arithmetic number, because the mean of its divisors is an integer number (6956040).

Almost surely, 2^162804420 is an apocalyptic number.

162804420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 162804420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250417440).

162804420 is an abundant number, since it is smaller than the sum of its proper divisors (338030460).

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

162804420 is a wasteful number, since it uses less digits than its factorization.

162804420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12825 (or 12820 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 162804420 is about 12759.4835318676. The cubic root of 162804420 is about 546.0369898057.

The spelling of 162804420 in words is "one hundred sixty-two million, eight hundred four thousand, four hundred twenty".