1420648 has 16 divisors (see below), whose sum is σ = 2676960. Its totient is φ = 706800.

The previous prime is 1420633. The next prime is 1420651. The reversal of 1420648 is 8460241.

It is an Ulam 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, 2203 + ... + 2773.

It is an arithmetic number, because the mean of its divisors is an integer number (167310).

2^1420648 is an apocalyptic number.

It is an amenable number.

1420648 is a deficient number, since it is larger than the sum of its proper divisors (1256312).

1420648 is a wasteful number, since it uses less digits than its factorization.

1420648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888 (or 884 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 1420648 is about 1191.9093925295. The cubic root of 1420648 is about 112.4161811872.

Adding to 1420648 its reverse (8460241), we get a palindrome (9880889).

The spelling of 1420648 in words is "one million, four hundred twenty thousand, six hundred forty-eight".