230405004 has 18 divisors (see below), whose sum is σ = 582412740. Its totient is φ = 76801656.

The previous prime is 230405003. The next prime is 230405023. The reversal of 230405004 is 400504032.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (230405003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3200034 + ... + 3200105.

Almost surely, 2^230405004 is an apocalyptic number.

It is an amenable number.

230405004 is an abundant number, since it is smaller than the sum of its proper divisors (352007736).

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

230405004 is a wasteful number, since it uses less digits than its factorization.

230405004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6400149 (or 6400144 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 230405004 is about 15179.0976016363. The cubic root of 230405004 is about 613.0519840915.

Adding to 230405004 its reverse (400504032), we get a palindrome (630909036).

The spelling of 230405004 in words is "two hundred thirty million, four hundred five thousand, four".