1385732 has 6 divisors (see below), whose sum is σ = 2425038. Its totient is φ = 692864.

The previous prime is 1385693. The next prime is 1385743. The reversal of 1385732 is 2375831.

It can be written as a sum of positive squares in only one way, i.e., 817216 + 568516 = 904^2 + 754^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1385695 and 1385704.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173213 + ... + 173220.

It is an arithmetic number, because the mean of its divisors is an integer number (404173).

2^1385732 is an apocalyptic number.

It is an amenable number.

1385732 is a deficient number, since it is larger than the sum of its proper divisors (1039306).

1385732 is a wasteful number, since it uses less digits than its factorization.

1385732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346437 (or 346435 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 1385732 is about 1177.1711855121. The cubic root of 1385732 is about 111.4875612016.

Subtracting 1385732 from its reverse (2375831), we obtain a palindrome (990099).

The spelling of 1385732 in words is "one million, three hundred eighty-five thousand, seven hundred thirty-two".