163443028 has 18 divisors (see below), whose sum is σ = 332723706. Its totient is φ = 70046928.

The previous prime is 163443013. The next prime is 163443029. The reversal of 163443028 is 820344361.

It can be written as a sum of positive squares in only one way, i.e., 163379524 + 63504 = 12782^2 + 252^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163443029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 416751 + ... + 417142.

Almost surely, 2^163443028 is an apocalyptic number.

It is an amenable number.

163443028 is an abundant number, since it is smaller than the sum of its proper divisors (169280678).

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

163443028 is a wasteful number, since it uses less digits than its factorization.

163443028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833911 (or 833902 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 163443028 is about 12784.4838769502. The cubic root of 163443028 is about 546.7500102621.

Adding to 163443028 its reverse (820344361), we get a palindrome (983787389).

The spelling of 163443028 in words is "one hundred sixty-three million, four hundred forty-three thousand, twenty-eight".