304025004 has 144 divisors (see below), whose sum is σ = 853987680. Its totient is φ = 90823680.

The previous prime is 304024993. The next prime is 304025021. The reversal of 304025004 is 400520403.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1037482 + ... + 1037774.

It is an arithmetic number, because the mean of its divisors is an integer number (5930470).

Almost surely, 2^304025004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304025004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (426993840).

304025004 is an abundant number, since it is smaller than the sum of its proper divisors (549962676).

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

304025004 is a wasteful number, since it uses less digits than its factorization.

304025004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 395 counting only the distinct ones).

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

The square root of 304025004 is about 17436.3127982954. The cubic root of 304025004 is about 672.4135156862.

Adding to 304025004 its reverse (400520403), we get a palindrome (704545407).

The spelling of 304025004 in words is "three hundred four million, twenty-five thousand, four".