1240353 has 10 divisors (see below), whose sum is σ = 1852994. Its totient is φ = 826848.

The previous prime is 1240333. The next prime is 1240361. The reversal of 1240353 is 3530421.

It can be written as a sum of positive squares in only one way, i.e., 627264 + 613089 = 792^2 + 783^2 .

It is not a de Polignac number, because 1240353 - 2⁸ = 1240097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1240333) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7576 + ... + 7737.

2^1240353 is an apocalyptic number.

It is an amenable number.

1240353 is a deficient number, since it is larger than the sum of its proper divisors (612641).

1240353 is an equidigital number, since it uses as much as digits as its factorization.

1240353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15325 (or 15316 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 1240353 is about 1113.7113629662. The cubic root of 1240353 is about 107.4439007818.

Adding to 1240353 its reverse (3530421), we get a palindrome (4770774).

The spelling of 1240353 in words is "one million, two hundred forty thousand, three hundred fifty-three".