304478825616 has 135 divisors (see below), whose sum is σ = 991390021401. Its totient is φ = 86980707072.

The previous prime is 304478825527. The next prime is 304478825633. The reversal of 304478825616 is 616528874403.

It is a happy number.

The square root of 304478825616 is 551796.

It is a perfect power (a square), and thus also a powerful number.

304478825616 is a `hidden beast` number, since 3 + 0 + 4 + 4 + 78 + 8 + 2 + 561 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 273951747216 + 30527078400 = 523404^2 + 174720^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 46347580 + ... + 46354148.

Almost surely, 2^304478825616 is an apocalyptic number.

304478825616 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

304478825616 is the 551796-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304478825616

304478825616 is an abundant number, since it is smaller than the sum of its proper divisors (686911195785).

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

304478825616 is an frugal number, since it uses more digits than its factorization.

304478825616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13166 (or 6581 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 54.

The spelling of 304478825616 in words is "three hundred four billion, four hundred seventy-eight million, eight hundred twenty-five thousand, six hundred sixteen".