1440066 has 8 divisors (see below), whose sum is σ = 2880144. Its totient is φ = 480020.

The previous prime is 1440037. The next prime is 1440079. The reversal of 1440066 is 6600441.

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

1440066 is an admirable number.

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, 120000 + ... + 120011.

It is an arithmetic number, because the mean of its divisors is an integer number (360018).

2^1440066 is an apocalyptic number.

1440066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1440066 is a wasteful number, since it uses less digits than its factorization.

1440066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240016.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1440066 is about 1200.0274996849. The cubic root of 1440066 is about 112.9260486721.

The spelling of 1440066 in words is "one million, four hundred forty thousand, sixty-six".