1056385 has 8 divisors (see below), whose sum is σ = 1382976. Its totient is φ = 768240.

The previous prime is 1056379. The next prime is 1056401. The reversal of 1056385 is 5836501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1056385 - 2⁵ = 1056353 is a prime.

It is a super-2 number, since 2×1056385² = 2231898536450, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

1056385 is a lucky number.

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 in 7 ways as a sum of consecutive naturals, for example, 9549 + ... + 9658.

It is an arithmetic number, because the mean of its divisors is an integer number (172872).

2^1056385 is an apocalyptic number.

It is an amenable number.

1056385 is a deficient number, since it is larger than the sum of its proper divisors (326591).

1056385 is a wasteful number, since it uses less digits than its factorization.

1056385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19223.

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

The square root of 1056385 is about 1027.8059155307. The cubic root of 1056385 is about 101.8452414116.

It can be divided in two parts, 10563 and 85, that added together give a cube (10648 = 22³).

The spelling of 1056385 in words is "one million, fifty-six thousand, three hundred eighty-five".