1491441 has 32 divisors (see below), whose sum is σ = 2457600. Its totient is φ = 786240.

The previous prime is 1491439. The next prime is 1491449. The reversal of 1491441 is 1441941.

It is not a de Polignac number, because 1491441 - 2¹ = 1491439 is a prime.

It is a Curzon number.

1491441 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1491449) 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 31 ways as a sum of consecutive naturals, for example, 18840 + ... + 18918.

It is an arithmetic number, because the mean of its divisors is an integer number (76800).

2^1491441 is an apocalyptic number.

It is an amenable number.

1491441 is a deficient number, since it is larger than the sum of its proper divisors (966159).

1491441 is a wasteful number, since it uses less digits than its factorization.

1491441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149.

The product of its digits is 576, while the sum is 24.

The square root of 1491441 is about 1221.2456755297. The cubic root of 1491441 is about 114.2532841764.

The spelling of 1491441 in words is "one million, four hundred ninety-one thousand, four hundred forty-one".