1022648 has 16 divisors (see below), whose sum is σ = 2091960. Its totient is φ = 464800.

The previous prime is 1022639. The next prime is 1022653. The reversal of 1022648 is 8462201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5723 + ... + 5898.

2^1022648 is an apocalyptic number.

It is an amenable number.

1022648 is an abundant number, since it is smaller than the sum of its proper divisors (1069312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1022648 is a wasteful number, since it uses less digits than its factorization.

1022648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11638 (or 11634 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 1022648 is about 1011.2605994500. The cubic root of 1022648 is about 100.7493047341.

Adding to 1022648 its reverse (8462201), we get a palindrome (9484849).

The spelling of 1022648 in words is "one million, twenty-two thousand, six hundred forty-eight".