4438498240381 has 2 divisors, whose sum is σ = 4438498240382. Its totient is φ = 4438498240380.

The previous prime is 4438498240327. The next prime is 4438498240391. The reversal of 4438498240381 is 1830428948344.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3410928796900 + 1027569443481 = 1846870^2 + 1013691^2 .

It is a cyclic number.

It is not a de Polignac number, because 4438498240381 - 2¹⁵ = 4438498207613 is a prime.

It is a super-2 number, since 2×4438498240381² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4438498240391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2219249120190 + 2219249120191.

It is an arithmetic number, because the mean of its divisors is an integer number (2219249120191).

Almost surely, 2^{4438498240381} is an apocalyptic number.

It is an amenable number.

4438498240381 is a deficient number, since it is larger than the sum of its proper divisors (1).

4438498240381 is an equidigital number, since it uses as much as digits as its factorization.

4438498240381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21233664, while the sum is 58.

The spelling of 4438498240381 in words is "four trillion, four hundred thirty-eight billion, four hundred ninety-eight million, two hundred forty thousand, three hundred eighty-one".