304000402021400 has 192 divisors, whose sum is σ = 816932821286400. Its totient is φ = 103050002165760.

The previous prime is 304000402021373. The next prime is 304000402021429. The reversal of 304000402021400 is 4120204000403.

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

It is a congruent number.

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, 87556904 + ... + 90962696.

It is an arithmetic number, because the mean of its divisors is an integer number (4254858444200).

Almost surely, 2^{304000402021400} 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 304000402021400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408466410643200).

304000402021400 is an abundant number, since it is smaller than the sum of its proper divisors (512932419265000).

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

304000402021400 is a wasteful number, since it uses less digits than its factorization.

304000402021400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3406538 (or 3406529 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 304000402021400 its reverse (4120204000403), we get a palindrome (308120606021803).

The spelling of 304000402021400 in words is "three hundred four trillion, four hundred two million, twenty-one thousand, four hundred".