1440053 has 16 divisors (see below), whose sum is σ = 1658880. Its totient is φ = 1241856.

The previous prime is 1440037. The next prime is 1440079. The reversal of 1440053 is 3500441.

1440053 is nontrivially palindromic in base 3.

It is a cyclic number.

It is not a de Polignac number, because 1440053 - 2⁴ = 1440037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440253) 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 15 ways as a sum of consecutive naturals, for example, 11276 + ... + 11402.

It is an arithmetic number, because the mean of its divisors is an integer number (103680).

2^1440053 is an apocalyptic number.

It is an amenable number.

1440053 is a deficient number, since it is larger than the sum of its proper divisors (218827).

1440053 is a wasteful number, since it uses less digits than its factorization.

1440053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1440053 is about 1200.0220831301. The cubic root of 1440053 is about 112.9257088629.

Adding to 1440053 its reverse (3500441), we get a palindrome (4940494).

The spelling of 1440053 in words is "one million, four hundred forty thousand, fifty-three".