1406816 has 12 divisors (see below), whose sum is σ = 2769732. Its totient is φ = 703392.

The previous prime is 1406807. The next prime is 1406827. The reversal of 1406816 is 6186041.

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 as a sum of consecutive naturals, namely, 21950 + ... + 22013.

It is an arithmetic number, because the mean of its divisors is an integer number (230811).

2^1406816 is an apocalyptic number.

1406816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1406816 is a deficient number, since it is larger than the sum of its proper divisors (1362916).

1406816 is an equidigital number, since it uses as much as digits as its factorization.

1406816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43973 (or 43965 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1406816 is about 1186.0927451089. The cubic root of 1406816 is about 112.0501476113.

It can be divided in two parts, 1406 and 816, that added together give a palindrome (2222).

The spelling of 1406816 in words is "one million, four hundred six thousand, eight hundred sixteen".