1170220 has 12 divisors (see below), whose sum is σ = 2457504. Its totient is φ = 468080.

The previous prime is 1170209. The next prime is 1170233. The reversal of 1170220 is 220711.

It is a self number, because there is not a number n which added to its sum of digits gives 1170220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29236 + ... + 29275.

It is an arithmetic number, because the mean of its divisors is an integer number (204792).

2^1170220 is an apocalyptic number.

1170220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1170220 is an abundant number, since it is smaller than the sum of its proper divisors (1287284).

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

1170220 is a wasteful number, since it uses less digits than its factorization.

1170220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58520 (or 58518 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 1170220 is about 1081.7670728951. The cubic root of 1170220 is about 105.3794284535.

Adding to 1170220 its reverse (220711), we get a palindrome (1390931).

The spelling of 1170220 in words is "one million, one hundred seventy thousand, two hundred twenty".