20046400404 has 12 divisors (see below), whose sum is σ = 46774934304. Its totient is φ = 6682133464.

The previous prime is 20046400397. The next prime is 20046400411. The reversal of 20046400404 is 40400464002.

It is an interprime number because it is at equal distance from previous prime (20046400397) and next prime (20046400411).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 835266672 + ... + 835266695.

It is an arithmetic number, because the mean of its divisors is an integer number (3897911192).

Almost surely, 2^20046400404 is an apocalyptic number.

It is an amenable number.

20046400404 is an abundant number, since it is smaller than the sum of its proper divisors (26728533900).

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

20046400404 is a wasteful number, since it uses less digits than its factorization.

20046400404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670533374 (or 1670533372 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20046400404 its reverse (40400464002), we get a palindrome (60446864406).

The spelling of 20046400404 in words is "twenty billion, forty-six million, four hundred thousand, four hundred four".