1382743444 has 6 divisors (see below), whose sum is σ = 2419801034. Its totient is φ = 691371720.

The previous prime is 1382743441. The next prime is 1382743459. The reversal of 1382743444 is 4443472831.

It can be written as a sum of positive squares in only one way, i.e., 780531844 + 602211600 = 27938^2 + 24540^2 .

It is a super-2 number, since 2×1382743444² = 3823958863849962272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1382743397 and 1382743406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1382743441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172842927 + ... + 172842934.

Almost surely, 2^1382743444 is an apocalyptic number.

It is an amenable number.

1382743444 is a deficient number, since it is larger than the sum of its proper divisors (1037057590).

1382743444 is a wasteful number, since it uses less digits than its factorization.

1382743444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345685865 (or 345685863 counting only the distinct ones).

The product of its digits is 258048, while the sum is 40.

The square root of 1382743444 is about 37185.2584231978. The cubic root of 1382743444 is about 1114.0735650809.

The spelling of 1382743444 in words is "one billion, three hundred eighty-two million, seven hundred forty-three thousand, four hundred forty-four".