163952280 has 96 divisors (see below), whose sum is σ = 556040160. Its totient is φ = 41817600.

The previous prime is 163952263. The next prime is 163952281. The reversal of 163952280 is 82259361.

163952280 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163952281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1621 + ... + 18180.

It is an arithmetic number, because the mean of its divisors is an integer number (5792085).

Almost surely, 2^163952280 is an apocalyptic number.

163952280 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 163952280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278020080).

163952280 is an abundant number, since it is smaller than the sum of its proper divisors (392087880).

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

163952280 is a wasteful number, since it uses less digits than its factorization.

163952280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19841 (or 19834 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 163952280 is about 12804.3851863336. The cubic root of 163952280 is about 547.3172718542.

The spelling of 163952280 in words is "one hundred sixty-three million, nine hundred fifty-two thousand, two hundred eighty".