1000020441440 has 24 divisors (see below), whose sum is σ = 2362548293280. Its totient is φ = 400008176512.

The previous prime is 1000020441437. The next prime is 1000020441449. The reversal of 1000020441440 is 441440200001.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000020441449) 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, 3125063720 + ... + 3125064039.

It is an arithmetic number, because the mean of its divisors is an integer number (98439512220).

Almost surely, 2^{1000020441440} is an apocalyptic number.

1000020441440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000020441440 is an abundant number, since it is smaller than the sum of its proper divisors (1362527851840).

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

1000020441440 is an equidigital number, since it uses as much as digits as its factorization.

1000020441440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6250127774 (or 6250127766 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 1000020441440 its reverse (441440200001), we get a palindrome (1441460641441).

The spelling of 1000020441440 in words is "one trillion, twenty million, four hundred forty-one thousand, four hundred forty".