1442438 has 4 divisors (see below), whose sum is σ = 2163660. Its totient is φ = 721218.

The previous prime is 1442437. The next prime is 1442453. The reversal of 1442438 is 8342441.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360608 + ... + 360611.

It is an arithmetic number, because the mean of its divisors is an integer number (540915).

2^1442438 is an apocalyptic number.

1442438 is a deficient number, since it is larger than the sum of its proper divisors (721222).

1442438 is an equidigital number, since it uses as much as digits as its factorization.

1442438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721221.

The product of its digits is 3072, while the sum is 26.

The square root of 1442438 is about 1201.0154037314. The cubic root of 1442438 is about 112.9880165850.

Adding to 1442438 its reverse (8342441), we get a palindrome (9784879).

The spelling of 1442438 in words is "one million, four hundred forty-two thousand, four hundred thirty-eight".