1150220 has 36 divisors (see below), whose sum is σ = 2578800. Its totient is φ = 430848.

The previous prime is 1150217. The next prime is 1150229. The reversal of 1150220 is 220511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5681 + ... + 5879.

2^1150220 is an apocalyptic number.

1150220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1150220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1289400).

1150220 is an abundant number, since it is smaller than the sum of its proper divisors (1428580).

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

1150220 is a wasteful number, since it uses less digits than its factorization.

1150220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 1150220 is about 1072.4831001000. The cubic root of 1150220 is about 104.7756358101.

Adding to 1150220 its reverse (220511), we get a palindrome (1370731).

The spelling of 1150220 in words is "one million, one hundred fifty thousand, two hundred twenty".