305505442404 has 36 divisors (see below), whose sum is σ = 773767105020. Its totient is φ = 101635072320.

The previous prime is 305505442391. The next prime is 305505442427. The reversal of 305505442404 is 404244505503.

305505442404 is a `hidden beast` number, since 30 + 550 + 54 + 4 + 24 + 0 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 96473602404 + 209031840000 = 310602^2 + 457200^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×305505442404² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8317887 + ... + 8354534.

It is an arithmetic number, because the mean of its divisors is an integer number (21493530695).

Almost surely, 2^305505442404 is an apocalyptic number.

It is an amenable number.

305505442404 is an abundant number, since it is smaller than the sum of its proper divisors (468261662616).

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

305505442404 is a wasteful number, since it uses less digits than its factorization.

305505442404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16672940 (or 16672935 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 36.

Adding to 305505442404 its reverse (404244505503), we get a palindrome (709749947907).

The spelling of 305505442404 in words is "three hundred five billion, five hundred five million, four hundred forty-two thousand, four hundred four".