1420444 has 6 divisors (see below), whose sum is σ = 2485784. Its totient is φ = 710220.

The previous prime is 1420429. The next prime is 1420483. The reversal of 1420444 is 4440241.

It is a super-2 number, since 2×1420444² = 4035322314272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177552 + ... + 177559.

2^1420444 is an apocalyptic number.

It is an amenable number.

1420444 is a deficient number, since it is larger than the sum of its proper divisors (1065340).

1420444 is a wasteful number, since it uses less digits than its factorization.

1420444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355115 (or 355113 counting only the distinct ones).

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

The square root of 1420444 is about 1191.8238124824. The cubic root of 1420444 is about 112.4108000750.

Adding to 1420444 its reverse (4440241), we get a palindrome (5860685).

The spelling of 1420444 in words is "one million, four hundred twenty thousand, four hundred forty-four".