20804624446 has 32 divisors (see below), whose sum is σ = 34793984160. Its totient is φ = 9271858176.

The previous prime is 20804624431. The next prime is 20804624459. The reversal of 20804624446 is 64442640802.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20804624399 and 20804624408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3651576 + ... + 3657268.

It is an arithmetic number, because the mean of its divisors is an integer number (1087312005).

Almost surely, 2^20804624446 is an apocalyptic number.

20804624446 is a deficient number, since it is larger than the sum of its proper divisors (13989359714).

20804624446 is a wasteful number, since it uses less digits than its factorization.

20804624446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11388.

The product of its (nonzero) digits is 294912, while the sum is 40.

The spelling of 20804624446 in words is "twenty billion, eight hundred four million, six hundred twenty-four thousand, four hundred forty-six".