1440622 has 4 divisors (see below), whose sum is σ = 2160936. Its totient is φ = 720310.

The previous prime is 1440619. The next prime is 1440623. The reversal of 1440622 is 2260441.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1440622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360154 + ... + 360157.

It is an arithmetic number, because the mean of its divisors is an integer number (540234).

2^1440622 is an apocalyptic number.

1440622 is a deficient number, since it is larger than the sum of its proper divisors (720314).

1440622 is an equidigital number, since it uses as much as digits as its factorization.

1440622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720313.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1440622 is about 1200.2591386863. The cubic root of 1440622 is about 112.9405801367.

The spelling of 1440622 in words is "one million, four hundred forty thousand, six hundred twenty-two".