1440804 has 12 divisors (see below), whose sum is σ = 3361904. Its totient is φ = 480264.

The previous prime is 1440799. The next prime is 1440811. The reversal of 1440804 is 4080441.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

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 in 3 ways as a sum of consecutive naturals, for example, 60022 + ... + 60045.

2^1440804 is an apocalyptic number.

It is an amenable number.

1440804 is an abundant number, since it is smaller than the sum of its proper divisors (1921100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1440804 is a wasteful number, since it uses less digits than its factorization.

1440804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120074 (or 120072 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1440804 is about 1200.3349532526. The cubic root of 1440804 is about 112.9453360268.

The spelling of 1440804 in words is "one million, four hundred forty thousand, eight hundred four".