20283499392 has 128 divisors (see below), whose sum is σ = 59894661120. Its totient is φ = 6039705600.

The previous prime is 20283499387. The next prime is 20283499409. The reversal of 20283499392 is 29399438202.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×20283499392² (a number of 21 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 89217 + ... + 220287.

It is an arithmetic number, because the mean of its divisors is an integer number (467927040).

Almost surely, 2^20283499392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20283499392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29947330560).

20283499392 is an abundant number, since it is smaller than the sum of its proper divisors (39611161728).

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

20283499392 is a wasteful number, since it uses less digits than its factorization.

20283499392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131132 (or 131120 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 51.

The spelling of 20283499392 in words is "twenty billion, two hundred eighty-three million, four hundred ninety-nine thousand, three hundred ninety-two".