163454742 has 48 divisors (see below), whose sum is σ = 387399168. Its totient is φ = 49397040.

The previous prime is 163454693. The next prime is 163454743. The reversal of 163454742 is 247454361.

163454742 is a `hidden beast` number, since 163 + 454 + 7 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 163454697 and 163454706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163454743) 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, 90783 + ... + 92565.

It is an arithmetic number, because the mean of its divisors is an integer number (8070816).

Almost surely, 2^163454742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163454742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193699584).

163454742 is an abundant number, since it is smaller than the sum of its proper divisors (223944426).

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

163454742 is a wasteful number, since it uses less digits than its factorization.

163454742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2265 (or 2262 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 163454742 is about 12784.9420022149. The cubic root of 163454742 is about 546.7630718504.

The spelling of 163454742 in words is "one hundred sixty-three million, four hundred fifty-four thousand, seven hundred forty-two".