20142247744 has 28 divisors (see below), whose sum is σ = 39976132900. Its totient is φ = 10069521408.

The previous prime is 20142247739. The next prime is 20142247753. The reversal of 20142247744 is 44774224102.

It can be written as a sum of positive squares in 2 ways, for example, as 12312121600 + 7830126144 = 110960^2 + 88488^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 450262 + ... + 492970.

Almost surely, 2^20142247744 is an apocalyptic number.

It is an amenable number.

20142247744 is a deficient number, since it is larger than the sum of its proper divisors (19833885156).

20142247744 is an equidigital number, since it uses as much as digits as its factorization.

20142247744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50090 (or 50080 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 37.

The spelling of 20142247744 in words is "twenty billion, one hundred forty-two million, two hundred forty-seven thousand, seven hundred forty-four".