1442369 has 4 divisors (see below), whose sum is σ = 1444800. Its totient is φ = 1439940.

The previous prime is 1442351. The next prime is 1442377. The reversal of 1442369 is 9632441.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442369 is a prime.

It is a super-2 number, since 2×1442369² = 4160856664322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442069) 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, 332 + ... + 1730.

It is an arithmetic number, because the mean of its divisors is an integer number (361200).

2^1442369 is an apocalyptic number.

It is an amenable number.

1442369 is a deficient number, since it is larger than the sum of its proper divisors (2431).

1442369 is a wasteful number, since it uses less digits than its factorization.

1442369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2430.

The product of its digits is 5184, while the sum is 29.

The square root of 1442369 is about 1200.9866776946. The cubic root of 1442369 is about 112.9862149368.

The spelling of 1442369 in words is "one million, four hundred forty-two thousand, three hundred sixty-nine".