1424239 has 4 divisors (see below), whose sum is σ = 1426824. Its totient is φ = 1421656.

The previous prime is 1424237. The next prime is 1424257. The reversal of 1424239 is 9324241.

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

It is a cyclic number.

It is not a de Polignac number, because 1424239 - 2¹ = 1424237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1424231) 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, 97 + ... + 1690.

It is an arithmetic number, because the mean of its divisors is an integer number (356706).

2^1424239 is an apocalyptic number.

1424239 is a deficient number, since it is larger than the sum of its proper divisors (2585).

1424239 is an equidigital number, since it uses as much as digits as its factorization.

1424239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2584.

The product of its digits is 1728, while the sum is 25.

The square root of 1424239 is about 1193.4148482401. The cubic root of 1424239 is about 112.5108203584.

The spelling of 1424239 in words is "one million, four hundred twenty-four thousand, two hundred thirty-nine".