1440011 has 2 divisors, whose sum is σ = 1440012. Its totient is φ = 1440010.

The previous prime is 1439989. The next prime is 1440017. The reversal of 1440011 is 1100441.

It is a strong prime.

It is an emirp because it is prime and its reverse (1100441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1440011 - 2⁶ = 1439947 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1439974 and 1440001.

It is not a weakly prime, because it can be changed into another prime (1440017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720005 + 720006.

It is an arithmetic number, because the mean of its divisors is an integer number (720006).

2^1440011 is an apocalyptic number.

1440011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440011 is an equidigital number, since it uses as much as digits as its factorization.

1440011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1440011 is about 1200.0045833246. The cubic root of 1440011 is about 112.9246110038.

Subtracting from 1440011 its sum of digits (11), we obtain a square (1440000 = 1200²).

Adding to 1440011 its reverse (1100441), we get a palindrome (2540452).

The spelling of 1440011 in words is "one million, four hundred forty thousand, eleven".