163441432 has 128 divisors (see below), whose sum is σ = 401863680. Its totient is φ = 60480000.

The previous prime is 163441429. The next prime is 163441433. The reversal of 163441432 is 234144361.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 163441432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163441433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1618182 + ... + 1618282.

It is an arithmetic number, because the mean of its divisors is an integer number (3139560).

Almost surely, 2^163441432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163441432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200931840).

163441432 is an abundant number, since it is smaller than the sum of its proper divisors (238422248).

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

163441432 is a wasteful number, since it uses less digits than its factorization.

163441432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 229 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 163441432 is about 12784.4214573832. The cubic root of 163441432 is about 546.7482306086.

Adding to 163441432 its reverse (234144361), we get a palindrome (397585793).

The spelling of 163441432 in words is "one hundred sixty-three million, four hundred forty-one thousand, four hundred thirty-two".