164405004 has 48 divisors (see below), whose sum is σ = 394974720. Its totient is φ = 53202240.

The previous prime is 164404991. The next prime is 164405029. The reversal of 164405004 is 400504461.

164405004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×164405004³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56407 + ... + 59249.

It is an arithmetic number, because the mean of its divisors is an integer number (8228640).

Almost surely, 2^164405004 is an apocalyptic number.

It is an amenable number.

164405004 is an abundant number, since it is smaller than the sum of its proper divisors (230569716).

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

164405004 is a wasteful number, since it uses less digits than its factorization.

164405004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2990 (or 2988 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 164405004 is about 12822.0514739257. The cubic root of 164405004 is about 547.8205807930.

Adding to 164405004 its reverse (400504461), we get a palindrome (564909465).

The spelling of 164405004 in words is "one hundred sixty-four million, four hundred five thousand, four".