20098384 has 10 divisors (see below), whose sum is σ = 38940650. Its totient is φ = 10049184.

The previous prime is 20098381. The next prime is 20098391. The reversal of 20098384 is 48389002.

It can be written as a sum of positive squares in only one way, i.e., 13987600 + 6110784 = 3740^2 + 2472^2 .

It is a super-2 number, since 2×20098384² = 807890078822912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20098381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628059 + ... + 628090.

It is an arithmetic number, because the mean of its divisors is an integer number (3894065).

Almost surely, 2^20098384 is an apocalyptic number.

It is an amenable number.

20098384 is a deficient number, since it is larger than the sum of its proper divisors (18842266).

20098384 is a wasteful number, since it uses less digits than its factorization.

20098384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256157 (or 1256151 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 20098384 is about 4483.1221263758. The cubic root of 20098384 is about 271.8861259198.

The spelling of 20098384 in words is "twenty million, ninety-eight thousand, three hundred eighty-four".