2030205440 has 80 divisors (see below), whose sum is σ = 4981207968. Its totient is φ = 793153536.

The previous prime is 2030205431. The next prime is 2030205451. The reversal of 2030205440 is 445020302.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 100859 + ... + 119301.

Almost surely, 2^2030205440 is an apocalyptic number.

2030205440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2030205440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2490603984).

2030205440 is an abundant number, since it is smaller than the sum of its proper divisors (2951002528).

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

2030205440 is an equidigital number, since it uses as much as digits as its factorization.

2030205440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18509 (or 18493 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 2030205440 is about 45057.8011003644. The cubic root of 2030205440 is about 1266.2321291859.

Adding to 2030205440 its reverse (445020302), we get a palindrome (2475225742).

The spelling of 2030205440 in words is "two billion, thirty million, two hundred five thousand, four hundred forty".