163802820 has 48 divisors (see below), whose sum is σ = 485630208. Its totient is φ = 41111040.

The previous prime is 163802813. The next prime is 163802827. The reversal of 163802820 is 28208361.

163802820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (163802813) and next prime (163802827).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (163802827) 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, 79276 + ... + 81315.

It is an arithmetic number, because the mean of its divisors is an integer number (10117296).

Almost surely, 2^163802820 is an apocalyptic number.

163802820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163802820 is an abundant number, since it is smaller than the sum of its proper divisors (321827388).

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

163802820 is a wasteful number, since it uses less digits than its factorization.

163802820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160620 (or 160618 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 163802820 is about 12798.5475738460. The cubic root of 163802820 is about 547.1509085905.

The spelling of 163802820 in words is "one hundred sixty-three million, eight hundred two thousand, eight hundred twenty".