1442319 has 4 divisors (see below), whose sum is σ = 1923096. Its totient is φ = 961544.

The previous prime is 1442317. The next prime is 1442321. The reversal of 1442319 is 9132441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9132441 = 3 ⋅3044147.

It is an interprime number because it is at equal distance from previous prime (1442317) and next prime (1442321).

It is a cyclic number.

It is not a de Polignac number, because 1442319 - 2¹ = 1442317 is a prime.

It is a super-2 number, since 2×1442319² = 4160568195522, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442317) 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, 240384 + ... + 240389.

It is an arithmetic number, because the mean of its divisors is an integer number (480774).

2^1442319 is an apocalyptic number.

1442319 is a deficient number, since it is larger than the sum of its proper divisors (480777).

1442319 is an equidigital number, since it uses as much as digits as its factorization.

1442319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480776.

The product of its digits is 864, while the sum is 24.

The square root of 1442319 is about 1200.9658612966. The cubic root of 1442319 is about 112.9849093587.

The spelling of 1442319 in words is "one million, four hundred forty-two thousand, three hundred nineteen".