164330404 has 24 divisors (see below), whose sum is σ = 331067520. Its totient is φ = 69911616.

The previous prime is 164330389. The next prime is 164330437. The reversal of 164330404 is 404033461.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17584 + ... + 25255.

It is an arithmetic number, because the mean of its divisors is an integer number (13794480).

Almost surely, 2^164330404 is an apocalyptic number.

164330404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

164330404 is an abundant number, since it is smaller than the sum of its proper divisors (166737116).

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

164330404 is a wasteful number, since it uses less digits than its factorization.

164330404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42987 (or 42985 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 164330404 is about 12819.1420929795. The cubic root of 164330404 is about 547.7377090288.

Adding to 164330404 its reverse (404033461), we get a palindrome (568363865).

The spelling of 164330404 in words is "one hundred sixty-four million, three hundred thirty thousand, four hundred four".