20040049812 has 24 divisors (see below), whose sum is σ = 47189111200. Its totient is φ = 6618731616.

The previous prime is 20040049801. The next prime is 20040049849. The reversal of 20040049812 is 21894004002.

It is a self number, because there is not a number n which added to its sum of digits gives 20040049812.

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 7 ways as a sum of consecutive naturals, for example, 7659262 + ... + 7661877.

Almost surely, 2^20040049812 is an apocalyptic number.

It is an amenable number.

20040049812 is an abundant number, since it is smaller than the sum of its proper divisors (27149061388).

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

20040049812 is a wasteful number, since it uses less digits than its factorization.

20040049812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15321255 (or 15321253 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The spelling of 20040049812 in words is "twenty billion, forty million, forty-nine thousand, eight hundred twelve".