1220446330 has 32 divisors (see below), whose sum is σ = 2226009600. Its totient is φ = 481727232.

The previous prime is 1220446313. The next prime is 1220446333. The reversal of 1220446330 is 336440221.

It is a junction number, because it is equal to n+sod(n) for n = 1220446295 and 1220446304.

It is not an unprimeable number, because it can be changed into a prime (1220446333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267811 + ... + 272329.

It is an arithmetic number, because the mean of its divisors is an integer number (69562800).

Almost surely, 2^1220446330 is an apocalyptic number.

1220446330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220446330 is a deficient number, since it is larger than the sum of its proper divisors (1005563270).

1220446330 is a wasteful number, since it uses less digits than its factorization.

1220446330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4878.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1220446330 is about 34934.8870042541. The cubic root of 1220446330 is about 1068.6600194186.

Adding to 1220446330 its reverse (336440221), we get a palindrome (1556886551).

The spelling of 1220446330 in words is "one billion, two hundred twenty million, four hundred forty-six thousand, three hundred thirty".