163796280 has 32 divisors (see below), whose sum is σ = 491389200. Its totient is φ = 43678976.

The previous prime is 163796279. The next prime is 163796287. The reversal of 163796280 is 82697361.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163796287) 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 7 ways as a sum of consecutive naturals, for example, 682365 + ... + 682604.

Almost surely, 2^163796280 is an apocalyptic number.

163796280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163796280 is an abundant number, since it is smaller than the sum of its proper divisors (327592920).

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

163796280 is a wasteful number, since it uses less digits than its factorization.

163796280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364983 (or 1364979 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 163796280 is about 12798.2920735542. The cubic root of 163796280 is about 547.1436266350.

The spelling of 163796280 in words is "one hundred sixty-three million, seven hundred ninety-six thousand, two hundred eighty".