20496427398 has 12 divisors (see below), whose sum is σ = 44408926068. Its totient is φ = 6832142460.

The previous prime is 20496427397. The next prime is 20496427439. The reversal of 20496427398 is 89372469402.

20496427398 is a `hidden beast` number, since 20 + 496 + 42 + 7 + 3 + 98 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20496427397) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 569345188 + ... + 569345223.

It is an arithmetic number, because the mean of its divisors is an integer number (3700743839).

Almost surely, 2^20496427398 is an apocalyptic number.

20496427398 is an abundant number, since it is smaller than the sum of its proper divisors (23912498670).

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

20496427398 is a wasteful number, since it uses less digits than its factorization.

20496427398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138690419 (or 1138690416 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 20496427398 in words is "twenty billion, four hundred ninety-six million, four hundred twenty-seven thousand, three hundred ninety-eight".