163484920 has 64 divisors (see below), whose sum is σ = 406451520. Its totient is φ = 58865664.

The previous prime is 163484863. The next prime is 163484939. The reversal of 163484920 is 29484361.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 163484920.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10414 + ... + 20866.

It is an arithmetic number, because the mean of its divisors is an integer number (6350805).

Almost surely, 2^163484920 is an apocalyptic number.

163484920 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 163484920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203225760).

163484920 is an abundant number, since it is smaller than the sum of its proper divisors (242966600).

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

163484920 is a wasteful number, since it uses less digits than its factorization.

163484920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10504 (or 10500 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 163484920 is about 12786.1221642842. The cubic root of 163484920 is about 546.7967186781.

The spelling of 163484920 in words is "one hundred sixty-three million, four hundred eighty-four thousand, nine hundred twenty".