20144235396 has 24 divisors (see below), whose sum is σ = 47098959264. Its totient is φ = 6701067520.

The previous prime is 20144235361. The next prime is 20144235407. The reversal of 20144235396 is 69353244102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1703565 + ... + 1715348.

It is an arithmetic number, because the mean of its divisors is an integer number (1962456636).

Almost surely, 2^20144235396 is an apocalyptic number.

It is an amenable number.

20144235396 is an abundant number, since it is smaller than the sum of its proper divisors (26954723868).

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

20144235396 is a wasteful number, since it uses less digits than its factorization.

20144235396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3419411 (or 3419409 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

Adding to 20144235396 its reverse (69353244102), we get a palindrome (89497479498).

The spelling of 20144235396 in words is "twenty billion, one hundred forty-four million, two hundred thirty-five thousand, three hundred ninety-six".