1440489 has 8 divisors (see below), whose sum is σ = 1929312. Its totient is φ = 956000.

The previous prime is 1440479. The next prime is 1440493. The reversal of 1440489 is 9840441.

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

It is a cyclic number.

It is not a de Polignac number, because 1440489 - 2⁴ = 1440473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1440419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204 + ... + 1709.

It is an arithmetic number, because the mean of its divisors is an integer number (241164).

2^1440489 is an apocalyptic number.

It is an amenable number.

1440489 is a deficient number, since it is larger than the sum of its proper divisors (488823).

1440489 is a wasteful number, since it uses less digits than its factorization.

1440489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2167.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 1440489 is about 1200.2037327054. The cubic root of 1440489 is about 112.9371044252.

The spelling of 1440489 in words is "one million, four hundred forty thousand, four hundred eighty-nine".