1382645 has 16 divisors (see below), whose sum is σ = 1890432. Its totient is φ = 960960.

The previous prime is 1382629. The next prime is 1382651. The reversal of 1382645 is 5462831.

It is not a de Polignac number, because 1382645 - 2⁴ = 1382629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 719 + ... + 1811.

It is an arithmetic number, because the mean of its divisors is an integer number (118152).

2^1382645 is an apocalyptic number.

It is an amenable number.

1382645 is a deficient number, since it is larger than the sum of its proper divisors (507787).

1382645 is a wasteful number, since it uses less digits than its factorization.

1382645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132.

The product of its digits is 5760, while the sum is 29.

The square root of 1382645 is about 1175.8592602859. The cubic root of 1382645 is about 111.4047125744.

It can be divided in two parts, 13826 and 45, that multiplied together give a triangular number (622170 = T₁₁₁₅).

The spelling of 1382645 in words is "one million, three hundred eighty-two thousand, six hundred forty-five".