163351428 has 48 divisors (see below), whose sum is σ = 400275456. Its totient is φ = 51749280.

The previous prime is 163351423. The next prime is 163351429. The reversal of 163351428 is 824153361.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (163351423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43173 + ... + 46803.

It is an arithmetic number, because the mean of its divisors is an integer number (8339072).

Almost surely, 2^163351428 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 163351428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200137728).

163351428 is an abundant number, since it is smaller than the sum of its proper divisors (236924028).

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

163351428 is a wasteful number, since it uses less digits than its factorization.

163351428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3824 (or 3822 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 163351428 is about 12780.9009072131. The cubic root of 163351428 is about 546.6478509949.

The spelling of 163351428 in words is "one hundred sixty-three million, three hundred fifty-one thousand, four hundred twenty-eight".