163457444 has 12 divisors (see below), whose sum is σ = 287107968. Its totient is φ = 81426600.

The previous prime is 163457443. The next prime is 163457507. The reversal of 163457444 is 444754361.

163457444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 163457398 and 163457407.

It is not an unprimeable number, because it can be changed into a prime (163457443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74312 + ... + 76479.

It is an arithmetic number, because the mean of its divisors is an integer number (23925664).

Almost surely, 2^163457444 is an apocalyptic number.

It is an amenable number.

163457444 is a deficient number, since it is larger than the sum of its proper divisors (123650524).

163457444 is a wasteful number, since it uses less digits than its factorization.

163457444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151066 (or 151064 counting only the distinct ones).

The product of its digits is 161280, while the sum is 38.

The square root of 163457444 is about 12785.0476729655. The cubic root of 163457444 is about 546.7660846021.

The spelling of 163457444 in words is "one hundred sixty-three million, four hundred fifty-seven thousand, four hundred forty-four".