1240433 has 4 divisors (see below), whose sum is σ = 1243380. Its totient is φ = 1237488.

The previous prime is 1240423. The next prime is 1240483. The reversal of 1240433 is 3340421.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1098304 + 142129 = 1048^2 + 377^2 .

It is a cyclic number.

It is not a de Polignac number, because 1240433 - 2¹² = 1236337 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (1240423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 710 + ... + 1727.

It is an arithmetic number, because the mean of its divisors is an integer number (310845).

2^1240433 is an apocalyptic number.

It is an amenable number.

1240433 is a deficient number, since it is larger than the sum of its proper divisors (2947).

1240433 is an equidigital number, since it uses as much as digits as its factorization.

1240433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1240433 is about 1113.7472783356. The cubic root of 1240433 is about 107.4462106961.

Adding to 1240433 its reverse (3340421), we get a palindrome (4580854).

The spelling of 1240433 in words is "one million, two hundred forty thousand, four hundred thirty-three".