1120322720 has 48 divisors (see below), whose sum is σ = 2887381728. Its totient is φ = 407389440.

The previous prime is 1120322683. The next prime is 1120322759. The reversal of 1120322720 is 272230211.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1120322692 and 1120322701.

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 7 ways as a sum of consecutive naturals, for example, 316514 + ... + 320033.

It is an arithmetic number, because the mean of its divisors is an integer number (60153786).

Almost surely, 2^1120322720 is an apocalyptic number.

1120322720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120322720 is an abundant number, since it is smaller than the sum of its proper divisors (1767059008).

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

1120322720 is a wasteful number, since it uses less digits than its factorization.

1120322720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636573 (or 636565 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 1120322720 is about 33471.2222662991. Note that the first 4 decimals coincide. The cubic root of 1120322720 is about 1038.5985561305.

Adding to 1120322720 its reverse (272230211), we get a palindrome (1392552931).

The spelling of 1120322720 in words is "one billion, one hundred twenty million, three hundred twenty-two thousand, seven hundred twenty".