1075220 has 24 divisors (see below), whose sum is σ = 2320584. Its totient is φ = 418176.

The previous prime is 1075201. The next prime is 1075231. The reversal of 1075220 is 225701.

It can be written as a sum of positive squares in 4 ways, for example, as 620944 + 454276 = 788^2 + 674^2 .

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, 14 + ... + 1466.

It is an arithmetic number, because the mean of its divisors is an integer number (96691).

2^1075220 is an apocalyptic number.

1075220 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 1075220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1160292).

1075220 is an abundant number, since it is smaller than the sum of its proper divisors (1245364).

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

1075220 is a wasteful number, since it uses less digits than its factorization.

1075220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499 (or 1497 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 1075220 is about 1036.9281556598. The cubic root of 1075220 is about 102.4469684030.

The spelling of 1075220 in words is "one million, seventy-five thousand, two hundred twenty".