1022456 has 8 divisors (see below), whose sum is σ = 1917120. Its totient is φ = 511224.

The previous prime is 1022449. The next prime is 1022467. The reversal of 1022456 is 6542201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63896 + ... + 63911.

It is an arithmetic number, because the mean of its divisors is an integer number (239640).

2^1022456 is an apocalyptic number.

It is an amenable number.

1022456 is a deficient number, since it is larger than the sum of its proper divisors (894664).

1022456 is a wasteful number, since it uses less digits than its factorization.

1022456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127813 (or 127809 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1022456 is about 1011.1656639740. The cubic root of 1022456 is about 100.7429991831.

Adding to 1022456 its reverse (6542201), we get a palindrome (7564657).

The spelling of 1022456 in words is "one million, twenty-two thousand, four hundred fifty-six".