1408641 has 16 divisors (see below), whose sum is σ = 2130240. Its totient is φ = 820800.

The previous prime is 1408633. The next prime is 1408651. The reversal of 1408641 is 1468041.

It is not a de Polignac number, because 1408641 - 2³ = 1408633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1408601) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 210 + ... + 1691.

It is an arithmetic number, because the mean of its divisors is an integer number (133140).

2^1408641 is an apocalyptic number.

It is an amenable number.

1408641 is a deficient number, since it is larger than the sum of its proper divisors (721599).

1408641 is a wasteful number, since it uses less digits than its factorization.

1408641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1936.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 1408641 is about 1186.8618285209. The cubic root of 1408641 is about 112.0985792368.

The spelling of 1408641 in words is "one million, four hundred eight thousand, six hundred forty-one".