163275438 has 8 divisors (see below), whose sum is σ = 326550888. Its totient is φ = 54425144.

The previous prime is 163275403. The next prime is 163275451. The reversal of 163275438 is 834572361.

It is a sphenic number, since it is the product of 3 distinct primes.

163275438 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 163275396 and 163275405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13606281 + ... + 13606292.

It is an arithmetic number, because the mean of its divisors is an integer number (40818861).

Almost surely, 2^163275438 is an apocalyptic number.

163275438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

163275438 is a wasteful number, since it uses less digits than its factorization.

163275438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27212578.

The product of its digits is 120960, while the sum is 39.

The square root of 163275438 is about 12777.9277662695. The cubic root of 163275438 is about 546.5630721968.

The spelling of 163275438 in words is "one hundred sixty-three million, two hundred seventy-five thousand, four hundred thirty-eight".