1440106 has 4 divisors (see below), whose sum is σ = 2160162. Its totient is φ = 720052.

The previous prime is 1440079. The next prime is 1440107. The reversal of 1440106 is 6010441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6010441 = 19 ⋅316339.

It can be written as a sum of positive squares in only one way, i.e., 1199025 + 241081 = 1095^2 + 491^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1440106.

It is not an unprimeable number, because it can be changed into a prime (1440107) 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 as a sum of consecutive naturals, namely, 360025 + ... + 360028.

2^1440106 is an apocalyptic number.

1440106 is a deficient number, since it is larger than the sum of its proper divisors (720056).

1440106 is an equidigital number, since it uses as much as digits as its factorization.

1440106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720055.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1440106 is about 1200.0441658539. The cubic root of 1440106 is about 112.9270942260.

Adding to 1440106 its reverse (6010441), we get a palindrome (7450547).

The spelling of 1440106 in words is "one million, four hundred forty thousand, one hundred six".