1405056 has 32 divisors (see below), whose sum is σ = 3733200. Its totient is φ = 468224.

The previous prime is 1405039. The next prime is 1405087. The reversal of 1405056 is 6505041.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

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 3 ways as a sum of consecutive naturals, for example, 1446 + ... + 2213.

2^1405056 is an apocalyptic number.

1405056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1405056 is an abundant number, since it is smaller than the sum of its proper divisors (2328144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1405056 is an equidigital number, since it uses as much as digits as its factorization.

1405056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3676 (or 3664 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1405056 is about 1185.3505810519. The cubic root of 1405056 is about 112.0034012573.

The spelling of 1405056 in words is "one million, four hundred five thousand, fifty-six".