164030720 has 72 divisors (see below), whose sum is σ = 449058624. Its totient is φ = 56236032.

The previous prime is 164030689. The next prime is 164030723. The reversal of 164030720 is 27030461.

It is not an unprimeable number, because it can be changed into a prime (164030723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194 + ... + 18113.

Almost surely, 2^164030720 is an apocalyptic number.

164030720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164030720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224529312).

164030720 is an abundant number, since it is smaller than the sum of its proper divisors (285027904).

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

164030720 is an equidigital number, since it uses as much as digits as its factorization.

164030720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18335 (or 18321 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 164030720 is about 12807.4478331946. The cubic root of 164030720 is about 547.4045426178.

The spelling of 164030720 in words is "one hundred sixty-four million, thirty thousand, seven hundred twenty".