304304011400 has 144 divisors (see below), whose sum is σ = 749950074900. Its totient is φ = 114813941760.

The previous prime is 304304011391. The next prime is 304304011433. The reversal of 304304011400 is 4110403403.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 134719829764 + 169584181636 = 367042^2 + 411806^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 16813556 + ... + 16831644.

Almost surely, 2^304304011400 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 304304011400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374975037450).

304304011400 is an abundant number, since it is smaller than the sum of its proper divisors (445646063500).

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

304304011400 is a wasteful number, since it uses less digits than its factorization.

304304011400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18376 (or 18348 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 304304011400 its reverse (4110403403), we get a palindrome (308414414803).

The spelling of 304304011400 in words is "three hundred four billion, three hundred four million, eleven thousand, four hundred".