20006231490 has 192 divisors, whose sum is σ = 60758380800. Its totient is φ = 4472962560.

The previous prime is 20006231327. The next prime is 20006231501. The reversal of 20006231490 is 9413260002.

20006231490 is a `hidden beast` number, since 20 + 0 + 0 + 623 + 14 + 9 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6287700 + ... + 6290880.

It is an arithmetic number, because the mean of its divisors is an integer number (316449900).

Almost surely, 2^20006231490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20006231490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30379190400).

20006231490 is an abundant number, since it is smaller than the sum of its proper divisors (40752149310).

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

20006231490 is a wasteful number, since it uses less digits than its factorization.

20006231490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3417 (or 3414 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 20006231490 its reverse (9413260002), we get a palindrome (29419491492).

The spelling of 20006231490 in words is "twenty billion, six million, two hundred thirty-one thousand, four hundred ninety".