163169244 has 72 divisors (see below), whose sum is σ = 486606848. Its totient is φ = 45113760.

The previous prime is 163169243. The next prime is 163169263. The reversal of 163169244 is 442961361.

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

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 163169199 and 163169208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163169243) 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, 2632 + ... + 18255.

Almost surely, 2^163169244 is an apocalyptic number.

163169244 is a gapful number since it is divisible by the number (14) 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 163169244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243303424).

163169244 is an abundant number, since it is smaller than the sum of its proper divisors (323437604).

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

163169244 is a wasteful number, since it uses less digits than its factorization.

163169244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20935 (or 20930 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 163169244 is about 12773.7717217743. The cubic root of 163169244 is about 546.4445520088. Note that the first 3 decimals are identical.

The spelling of 163169244 in words is "one hundred sixty-three million, one hundred sixty-nine thousand, two hundred forty-four".