1120780 has 12 divisors (see below), whose sum is σ = 2353680. Its totient is φ = 448304.

The previous prime is 1120771. The next prime is 1120781. The reversal of 1120780 is 870211.

It is a super-2 number, since 2×1120780² = 2512295616800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1120781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28000 + ... + 28039.

It is an arithmetic number, because the mean of its divisors is an integer number (196140).

2^1120780 is an apocalyptic number.

1120780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120780 is an abundant number, since it is smaller than the sum of its proper divisors (1232900).

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

1120780 is a wasteful number, since it uses less digits than its factorization.

1120780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56048 (or 56046 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 1120780 is about 1058.6689756482. The cubic root of 1120780 is about 103.8739844510.

Adding to 1120780 its reverse (870211), we get a palindrome (1990991).

The spelling of 1120780 in words is "one million, one hundred twenty thousand, seven hundred eighty".