1404489 has 8 divisors (see below), whose sum is σ = 1982880. Its totient is φ = 881216.

The previous prime is 1404479. The next prime is 1404497. The reversal of 1404489 is 9844041.

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 1404489 - 2¹⁷ = 1273417 is a prime.

It is a super-2 number, since 2×1404489² = 3945178702242, which contains 22 as substring.

1404489 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1404419) 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 7 ways as a sum of consecutive naturals, for example, 13719 + ... + 13820.

It is an arithmetic number, because the mean of its divisors is an integer number (247860).

2^1404489 is an apocalyptic number.

It is an amenable number.

1404489 is a deficient number, since it is larger than the sum of its proper divisors (578391).

1404489 is a wasteful number, since it uses less digits than its factorization.

1404489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27559.

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

The square root of 1404489 is about 1185.1113871700. Note that the first 3 decimals coincide. The cubic root of 1404489 is about 111.9883331810.

The spelling of 1404489 in words is "one million, four hundred four thousand, four hundred eighty-nine".