1438100841 has 4 divisors (see below), whose sum is σ = 1917467792. Its totient is φ = 958733892.

The previous prime is 1438100837. The next prime is 1438100879. The reversal of 1438100841 is 1480018341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1438100841 - 2² = 1438100837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1438100799 and 1438100808.

It is not an unprimeable number, because it can be changed into a prime (1438100821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239683471 + ... + 239683476.

It is an arithmetic number, because the mean of its divisors is an integer number (479366948).

Almost surely, 2^1438100841 is an apocalyptic number.

It is an amenable number.

1438100841 is a deficient number, since it is larger than the sum of its proper divisors (479366951).

1438100841 is an equidigital number, since it uses as much as digits as its factorization.

1438100841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479366950.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 1438100841 is about 37922.3000489158. The cubic root of 1438100841 is about 1128.7465781854.

The spelling of 1438100841 in words is "one billion, four hundred thirty-eight million, one hundred thousand, eight hundred forty-one".