1056220 has 24 divisors (see below), whose sum is σ = 2420208. Its totient is φ = 384000.

The previous prime is 1056217. The next prime is 1056241. The reversal of 1056220 is 226501.

It is a happy number.

It is a super-2 number, since 2×1056220² = 2231201376800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1056194 and 1056203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2181 + ... + 2620.

It is an arithmetic number, because the mean of its divisors is an integer number (100842).

2^1056220 is an apocalyptic number.

1056220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1056220 is an abundant number, since it is smaller than the sum of its proper divisors (1363988).

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

1056220 is a wasteful number, since it uses less digits than its factorization.

1056220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4821 (or 4819 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1056220 is about 1027.7256443234. The cubic root of 1056220 is about 101.8399386291.

The spelling of 1056220 in words is "one million, fifty-six thousand, two hundred twenty".