1022556 has 12 divisors (see below), whose sum is σ = 2385992. Its totient is φ = 340848.

The previous prime is 1022531. The next prime is 1022573. The reversal of 1022556 is 6552201.

It is a tau number, because it is divible by the number of its divisors (12).

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, 42595 + ... + 42618.

2^1022556 is an apocalyptic number.

It is an amenable number.

1022556 is an abundant number, since it is smaller than the sum of its proper divisors (1363436).

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

1022556 is a wasteful number, since it uses less digits than its factorization.

1022556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85220 (or 85218 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1022556 is about 1011.2151106466. The cubic root of 1022556 is about 100.7462834227.

Adding to 1022556 its reverse (6552201), we get a palindrome (7574757).

The spelling of 1022556 in words is "one million, twenty-two thousand, five hundred fifty-six".