1442404 has 12 divisors (see below), whose sum is σ = 2657200. Its totient is φ = 683208.

The previous prime is 1442393. The next prime is 1442411. The reversal of 1442404 is 4042441.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 9414 + ... + 9565.

2^1442404 is an apocalyptic number.

It is an amenable number.

1442404 is a deficient number, since it is larger than the sum of its proper divisors (1214796).

1442404 is a wasteful number, since it uses less digits than its factorization.

1442404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19002 (or 19000 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 1442404 is about 1201.0012489586. The cubic root of 1442404 is about 112.9871288235.

Adding to 1442404 its reverse (4042441), we get a palindrome (5484845).

The spelling of 1442404 in words is "one million, four hundred forty-two thousand, four hundred four".