2440445026021 has 4 divisors (see below), whose sum is σ = 2444674567372. Its totient is φ = 2436215484672.

The previous prime is 2440445026001. The next prime is 2440445026057. The reversal of 2440445026021 is 1206205440442.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2263023792225 + 177421233796 = 1504335^2 + 421214^2 .

It is a cyclic number.

It is not a de Polignac number, because 2440445026021 - 2³³ = 2431855091429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2440445026001) 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, 2114769810 + ... + 2114770963.

It is an arithmetic number, because the mean of its divisors is an integer number (611168641843).

Almost surely, 2^{2440445026021} is an apocalyptic number.

It is an amenable number.

2440445026021 is a deficient number, since it is larger than the sum of its proper divisors (4229541351).

2440445026021 is an equidigital number, since it uses as much as digits as its factorization.

2440445026021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4229541350.

The product of its (nonzero) digits is 61440, while the sum is 34.

The spelling of 2440445026021 in words is "two trillion, four hundred forty billion, four hundred forty-five million, twenty-six thousand, twenty-one".