20444306404 has 24 divisors (see below), whose sum is σ = 36385558328. Its totient is φ = 10048631040.

The previous prime is 20444306387. The next prime is 20444306417. The reversal of 20444306404 is 40460344402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1054300900 + 19390005504 = 32470^2 + 139248^2 .

It is a super-2 number, since 2×20444306404² (a number of 21 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 403834 + ... + 451630.

Almost surely, 2^20444306404 is an apocalyptic number.

It is an amenable number.

20444306404 is a deficient number, since it is larger than the sum of its proper divisors (15941251924).

20444306404 is a wasteful number, since it uses less digits than its factorization.

20444306404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49615 (or 49613 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

The spelling of 20444306404 in words is "twenty billion, four hundred forty-four million, three hundred six thousand, four hundred four".