164004330 has 32 divisors (see below), whose sum is σ = 449841024. Its totient is φ = 37486656.

The previous prime is 164004319. The next prime is 164004341. The reversal of 164004330 is 33400461.

It is an interprime number because it is at equal distance from previous prime (164004319) and next prime (164004341).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 164004297 and 164004306.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 390277 + ... + 390696.

It is an arithmetic number, because the mean of its divisors is an integer number (14057532).

Almost surely, 2^164004330 is an apocalyptic number.

164004330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164004330 is an abundant number, since it is smaller than the sum of its proper divisors (285836694).

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

164004330 is a wasteful number, since it uses less digits than its factorization.

164004330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780990.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 164004330 is about 12806.4175318471. The cubic root of 164004330 is about 547.3751847417.

Adding to 164004330 its reverse (33400461), we get a palindrome (197404791).

The spelling of 164004330 in words is "one hundred sixty-four million, four thousand, three hundred thirty".