164684320 has 24 divisors (see below), whose sum is σ = 389067084. Its totient is φ = 65873664.

The previous prime is 164684297. The next prime is 164684327. The reversal of 164684320 is 23486461.

It can be written as a sum of positive squares in 2 ways, for example, as 164557584 + 126736 = 12828^2 + 356^2 .

It is not an unprimeable number, because it can be changed into a prime (164684327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514479 + ... + 514798.

Almost surely, 2^164684320 is an apocalyptic number.

164684320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164684320 is an abundant number, since it is smaller than the sum of its proper divisors (224382764).

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

164684320 is a wasteful number, since it uses less digits than its factorization.

164684320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029292 (or 1029284 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 164684320 is about 12832.9388683964. The cubic root of 164684320 is about 548.1306453212.

The spelling of 164684320 in words is "one hundred sixty-four million, six hundred eighty-four thousand, three hundred twenty".