20001450 has 96 divisors (see below), whose sum is σ = 58139136. Its totient is φ = 4455360.

The previous prime is 20001439. The next prime is 20001451. The reversal of 20001450 is 5410002.

It is not an unprimeable number, because it can be changed into a prime (20001451) 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 in 47 ways as a sum of consecutive naturals, for example, 44929 + ... + 45371.

It is an arithmetic number, because the mean of its divisors is an integer number (605616).

Almost surely, 2^20001450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20001450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29069568).

20001450 is an abundant number, since it is smaller than the sum of its proper divisors (38137686).

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

20001450 is a wasteful number, since it uses less digits than its factorization.

20001450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 20001450 is about 4472.2980669897. The cubic root of 20001450 is about 271.4483213435.

Adding to 20001450 its reverse (5410002), we get a palindrome (25411452).

The spelling of 20001450 in words is "twenty million, one thousand, four hundred fifty".