20284950450 has 96 divisors (see below), whose sum is σ = 52440125760. Its totient is φ = 5182777600.

The previous prime is 20284950437. The next prime is 20284950473. The reversal of 20284950450 is 5405948202.

It is a super-2 number, since 2×20284950450² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20284950399 and 20284950408.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 552052 + ... + 587648.

It is an arithmetic number, because the mean of its divisors is an integer number (546251310).

Almost surely, 2^20284950450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20284950450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26220062880).

20284950450 is an abundant number, since it is smaller than the sum of its proper divisors (32155175310).

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

20284950450 is a wasteful number, since it uses less digits than its factorization.

20284950450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35772 (or 35767 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 20284950450 in words is "twenty billion, two hundred eighty-four million, nine hundred fifty thousand, four hundred fifty".