163378272 has 24 divisors (see below), whose sum is σ = 428868216. Its totient is φ = 54459392.

The previous prime is 163378219. The next prime is 163378309. The reversal of 163378272 is 272873361.

163378272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 163378272.

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, 850833 + ... + 851024.

It is an arithmetic number, because the mean of its divisors is an integer number (17869509).

Almost surely, 2^163378272 is an apocalyptic number.

163378272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163378272 is an abundant number, since it is smaller than the sum of its proper divisors (265489944).

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

163378272 is a wasteful number, since it uses less digits than its factorization.

163378272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701870 (or 1701862 counting only the distinct ones).

The product of its digits is 84672, while the sum is 39.

The square root of 163378272 is about 12781.9510247849. The cubic root of 163378272 is about 546.6777934149.

The spelling of 163378272 in words is "one hundred sixty-three million, three hundred seventy-eight thousand, two hundred seventy-two".