1242433 has 4 divisors (see below), whose sum is σ = 1258240. Its totient is φ = 1226628.

The previous prime is 1242421. The next prime is 1242457. The reversal of 1242433 is 3342421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3342421 = 17 ⋅196613.

It is a cyclic number.

It is not a de Polignac number, because 1242433 - 2⁹ = 1241921 is a prime.

It is a Duffinian number.

1242433 is a lucky number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 1242433.

It is not an unprimeable number, because it can be changed into a prime (1242403) 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, 7785 + ... + 7942.

It is an arithmetic number, because the mean of its divisors is an integer number (314560).

2^1242433 is an apocalyptic number.

It is an amenable number.

1242433 is a deficient number, since it is larger than the sum of its proper divisors (15807).

1242433 is an equidigital number, since it uses as much as digits as its factorization.

1242433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15806.

The product of its digits is 576, while the sum is 19.

The square root of 1242433 is about 1114.6447864679. The cubic root of 1242433 is about 107.5039263033.

Adding to 1242433 its reverse (3342421), we get a palindrome (4584854).

The spelling of 1242433 in words is "one million, two hundred forty-two thousand, four hundred thirty-three".