1420346 has 8 divisors (see below), whose sum is σ = 2135700. Its totient is φ = 708448.

The previous prime is 1420303. The next prime is 1420357. The reversal of 1420346 is 6430241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 978121 + 442225 = 989^2 + 665^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 1 + 4² + 2¹⁵ + 0 + 3¹⁰ + 4¹⁰ + 6⁷ .

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 in 3 ways as a sum of consecutive naturals, for example, 830 + ... + 1878.

2^1420346 is an apocalyptic number.

1420346 is a deficient number, since it is larger than the sum of its proper divisors (715354).

1420346 is a wasteful number, since it uses less digits than its factorization.

1420346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1420346 is about 1191.7826983137. The cubic root of 1420346 is about 112.4082148477.

Adding to 1420346 its reverse (6430241), we get a palindrome (7850587).

The spelling of 1420346 in words is "one million, four hundred twenty thousand, three hundred forty-six".