30404640404 has 12 divisors (see below), whose sum is σ = 55042883700. Its totient is φ = 14678102208.

The previous prime is 30404640367. The next prime is 30404640419. The reversal of 30404640404 is 40404640403.

It can be written as a sum of positive squares in 2 ways, for example, as 25814848900 + 4589791504 = 160670^2 + 67748^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131054369 + ... + 131054600.

It is an arithmetic number, because the mean of its divisors is an integer number (4586906975).

Almost surely, 2^30404640404 is an apocalyptic number.

It is an amenable number.

30404640404 is a deficient number, since it is larger than the sum of its proper divisors (24638243296).

30404640404 is a wasteful number, since it uses less digits than its factorization.

30404640404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262109002 (or 262109000 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Subtracting 30404640404 from its reverse (40404640403), we obtain a palindrome (9999999999).

The spelling of 30404640404 in words is "thirty billion, four hundred four million, six hundred forty thousand, four hundred four".