1220440322 has 8 divisors (see below), whose sum is σ = 1833440400. Its totient is φ = 609293524.

The previous prime is 1220440307. The next prime is 1220440327. The reversal of 1220440322 is 2230440221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1220440294 and 1220440303.

It is not an unprimeable number, because it can be changed into a prime (1220440327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461672 + ... + 464307.

It is an arithmetic number, because the mean of its divisors is an integer number (229180050).

Almost surely, 2^1220440322 is an apocalyptic number.

1220440322 is a deficient number, since it is larger than the sum of its proper divisors (613000078).

1220440322 is an equidigital number, since it uses as much as digits as its factorization.

1220440322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926640.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1220440322 is about 34934.8010156062. The cubic root of 1220440322 is about 1068.6582658197.

Adding to 1220440322 its reverse (2230440221), we get a palindrome (3450880543).

The spelling of 1220440322 in words is "one billion, two hundred twenty million, four hundred forty thousand, three hundred twenty-two".