1438144382 has 4 divisors (see below), whose sum is σ = 2157216576. Its totient is φ = 719072190.

The previous prime is 1438144349. The next prime is 1438144439. The reversal of 1438144382 is 2834418341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2834418341 = 3547 ⋅799103.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 359536094 + ... + 359536097.

It is an arithmetic number, because the mean of its divisors is an integer number (539304144).

Almost surely, 2^1438144382 is an apocalyptic number.

1438144382 is a deficient number, since it is larger than the sum of its proper divisors (719072194).

1438144382 is an equidigital number, since it uses as much as digits as its factorization.

1438144382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719072193.

The product of its digits is 73728, while the sum is 38.

The square root of 1438144382 is about 37922.8741263106. The cubic root of 1438144382 is about 1128.7579696579.

The spelling of 1438144382 in words is "one billion, four hundred thirty-eight million, one hundred forty-four thousand, three hundred eighty-two".