1385056 has 12 divisors (see below), whose sum is σ = 2726892. Its totient is φ = 692512.

The previous prime is 1385051. The next prime is 1385057. The reversal of 1385056 is 6505831.

1385056 is nontrivially palindromic in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385051) by changing a digit.

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, 21610 + ... + 21673.

It is an arithmetic number, because the mean of its divisors is an integer number (227241).

2^1385056 is an apocalyptic number.

1385056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1385056 is a deficient number, since it is larger than the sum of its proper divisors (1341836).

1385056 is an equidigital number, since it uses as much as digits as its factorization.

1385056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43293 (or 43285 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1385056 is about 1176.8840214737. The cubic root of 1385056 is about 111.4694293046.

The spelling of 1385056 in words is "one million, three hundred eighty-five thousand, fifty-six".