20239486448 has 20 divisors (see below), whose sum is σ = 39339299088. Its totient is φ = 10087409280.

The previous prime is 20239486409. The next prime is 20239486457. The reversal of 20239486448 is 84468493202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20239486396 and 20239486405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2015708 + ... + 2025723.

Almost surely, 2^20239486448 is an apocalyptic number.

It is an amenable number.

20239486448 is a deficient number, since it is larger than the sum of its proper divisors (19099812640).

20239486448 is a wasteful number, since it uses less digits than its factorization.

20239486448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4041752 (or 4041746 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 50.

The spelling of 20239486448 in words is "twenty billion, two hundred thirty-nine million, four hundred eighty-six thousand, four hundred forty-eight".