1182220 has 24 divisors (see below), whose sum is σ = 2674224. Its totient is φ = 436416.

The previous prime is 1182211. The next prime is 1182253. The reversal of 1182220 is 222811.

It is a junction number, because it is equal to n+sod(n) for n = 1182194 and 1182203.

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, 2014 + ... + 2533.

It is an arithmetic number, because the mean of its divisors is an integer number (111426).

2^1182220 is an apocalyptic number.

1182220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1182220 is an abundant number, since it is smaller than the sum of its proper divisors (1492004).

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

1182220 is a wasteful number, since it uses less digits than its factorization.

1182220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4569 (or 4567 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1182220 is about 1087.2994067873. The cubic root of 1182220 is about 105.7384080053.

The spelling of 1182220 in words is "one million, one hundred eighty-two thousand, two hundred twenty".