1120520 has 32 divisors (see below), whose sum is σ = 2554200. Its totient is φ = 442368.

The previous prime is 1120519. The next prime is 1120529. The reversal of 1120520 is 250211.

It can be written as a sum of positive squares in 4 ways, for example, as 1119364 + 1156 = 1058^2 + 34^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1120529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4232 + ... + 4488.

2^1120520 is an apocalyptic number.

1120520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120520 is an abundant number, since it is smaller than the sum of its proper divisors (1433680).

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

1120520 is a wasteful number, since it uses less digits than its factorization.

1120520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 373 counting only the distinct ones).

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

The square root of 1120520 is about 1058.5461728238. The cubic root of 1120520 is about 103.8659515559.

Adding to 1120520 its reverse (250211), we get a palindrome (1370731).

The spelling of 1120520 in words is "one million, one hundred twenty thousand, five hundred twenty".