1440466 has 8 divisors (see below), whose sum is σ = 2274480. Its totient is φ = 682308.

The previous prime is 1440449. The next prime is 1440469. The reversal of 1440466 is 6640441.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1440466.

It is not an unprimeable number, because it can be changed into a prime (1440469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18916 + ... + 18991.

It is an arithmetic number, because the mean of its divisors is an integer number (284310).

2^1440466 is an apocalyptic number.

1440466 is a deficient number, since it is larger than the sum of its proper divisors (834014).

1440466 is a wasteful number, since it uses less digits than its factorization.

1440466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37928.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1440466 is about 1200.1941509606. The cubic root of 1440466 is about 112.9365033406.

Subtracting from 1440466 its sum of digits (25), we obtain a palindrome (1440441).

The spelling of 1440466 in words is "one million, four hundred forty thousand, four hundred sixty-six".