20029193436 has 48 divisors (see below), whose sum is σ = 54163468800. Its totient is φ = 5642024640.

The previous prime is 20029193423. The next prime is 20029193441. The reversal of 20029193436 is 63439192002.

It is a junction number, because it is equal to n+sod(n) for n = 20029193394 and 20029193403.

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 15 ways as a sum of consecutive naturals, for example, 1673211 + ... + 1685138.

It is an arithmetic number, because the mean of its divisors is an integer number (1128405600).

Almost surely, 2^20029193436 is an apocalyptic number.

It is an amenable number.

20029193436 is an abundant number, since it is smaller than the sum of its proper divisors (34134275364).

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

20029193436 is a wasteful number, since it uses less digits than its factorization.

20029193436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3358434 (or 3358432 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 39.

The spelling of 20029193436 in words is "twenty billion, twenty-nine million, one hundred ninety-three thousand, four hundred thirty-six".