164383720 has 32 divisors (see below), whose sum is σ = 372787200. Its totient is φ = 65233728.

The previous prime is 164383651. The next prime is 164383721. The reversal of 164383720 is 27383461.

It is a happy number.

164383720 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (164383721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11100 + ... + 21259.

It is an arithmetic number, because the mean of its divisors is an integer number (11649600).

Almost surely, 2^164383720 is an apocalyptic number.

164383720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164383720 is an abundant number, since it is smaller than the sum of its proper divisors (208403480).

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

164383720 is a wasteful number, since it uses less digits than its factorization.

164383720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32497 (or 32493 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 164383720 is about 12821.2214706712. The cubic root of 164383720 is about 547.7969393462.

The spelling of 164383720 in words is "one hundred sixty-four million, three hundred eighty-three thousand, seven hundred twenty".