2001450020 has 12 divisors (see below), whose sum is σ = 4203045084. Its totient is φ = 800580000.

The previous prime is 2001449981. The next prime is 2001450029. The reversal of 2001450020 is 200541002.

It can be written as a sum of positive squares in 2 ways, for example, as 1153825024 + 847624996 = 33968^2 + 29114^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2001449977 and 2001450004.

It is not an unprimeable number, because it can be changed into a prime (2001450029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50036231 + ... + 50036270.

It is an arithmetic number, because the mean of its divisors is an integer number (350253757).

Almost surely, 2^2001450020 is an apocalyptic number.

2001450020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001450020 is an abundant number, since it is smaller than the sum of its proper divisors (2201595064).

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

2001450020 is a wasteful number, since it uses less digits than its factorization.

2001450020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100072510 (or 100072508 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 2001450020 is about 44737.5683290900. The cubic root of 2001450020 is about 1260.2254614597.

Adding to 2001450020 its reverse (200541002), we get a palindrome (2201991022).

The spelling of 2001450020 in words is "two billion, one million, four hundred fifty thousand, twenty".