163032730 has 64 divisors (see below), whose sum is σ = 362684160. Its totient is φ = 51508224.

The previous prime is 163032721. The next prime is 163032733. The reversal of 163032730 is 37230361.

It is a junction number, because it is equal to n+sod(n) for n = 163032695 and 163032704.

It is not an unprimeable number, because it can be changed into a prime (163032733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47554 + ... + 50866.

It is an arithmetic number, because the mean of its divisors is an integer number (5666940).

Almost surely, 2^163032730 is an apocalyptic number.

163032730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163032730 is an abundant number, since it is smaller than the sum of its proper divisors (199651430).

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

163032730 is a wasteful number, since it uses less digits than its factorization.

163032730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3383.

The product of its (nonzero) digits is 2268, while the sum is 25.

The square root of 163032730 is about 12768.4270761907. The cubic root of 163032730 is about 546.2921169397.

The spelling of 163032730 in words is "one hundred sixty-three million, thirty-two thousand, seven hundred thirty".