2026440040 has 32 divisors (see below), whose sum is σ = 4561622280. Its totient is φ = 810196992.

The previous prime is 2026440029. The next prime is 2026440043. The reversal of 2026440040 is 400446202.

It can be written as a sum of positive squares in 4 ways, for example, as 1305087876 + 721352164 = 36126^2 + 26858^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2026439993 and 2026440020.

It is not an unprimeable number, because it can be changed into a prime (2026440043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84424 + ... + 105736.

Almost surely, 2^2026440040 is an apocalyptic number.

2026440040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2026440040 is an abundant number, since it is smaller than the sum of its proper divisors (2535182240).

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

2026440040 is a wasteful number, since it uses less digits than its factorization.

2026440040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23701 (or 23697 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2026440040 is about 45015.9976008530. The cubic root of 2026440040 is about 1265.4488223925.

Adding to 2026440040 its reverse (400446202), we get a palindrome (2426886242).

The spelling of 2026440040 in words is "two billion, twenty-six million, four hundred forty thousand, forty".