4020636450 has 96 divisors (see below), whose sum is σ = 10571466240. Its totient is φ = 1009497600.

The previous prime is 4020636443. The next prime is 4020636461. The reversal of 4020636450 is 546360204.

4020636450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 160366 + ... + 183734.

It is an arithmetic number, because the mean of its divisors is an integer number (110119440).

Almost surely, 2^4020636450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4020636450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5285733120).

4020636450 is an abundant number, since it is smaller than the sum of its proper divisors (6550829790).

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

4020636450 is a wasteful number, since it uses less digits than its factorization.

4020636450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23452 (or 23447 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 4020636450 is about 63408.4887850199. The cubic root of 4020636450 is about 1590.1262310288.

Adding to 4020636450 its reverse (546360204), we get a palindrome (4566996654).

The spelling of 4020636450 in words is "four billion, twenty million, six hundred thirty-six thousand, four hundred fifty".