1220430450 has 24 divisors (see below), whose sum is σ = 3026667888. Its totient is φ = 325448080.

The previous prime is 1220430443. The next prime is 1220430451. The reversal of 1220430450 is 540340221.

It is not an unprimeable number, because it can be changed into a prime (1220430451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4067952 + ... + 4068251.

It is an arithmetic number, because the mean of its divisors is an integer number (126111162).

Almost surely, 2^1220430450 is an apocalyptic number.

1220430450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220430450 is an abundant number, since it is smaller than the sum of its proper divisors (1806237438).

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

1220430450 is a wasteful number, since it uses less digits than its factorization.

1220430450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8136218 (or 8136213 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1220430450 is about 34934.6597235468. The cubic root of 1220430450 is about 1068.6553843944.

Adding to 1220430450 its reverse (540340221), we get a palindrome (1760770671).

The spelling of 1220430450 in words is "one billion, two hundred twenty million, four hundred thirty thousand, four hundred fifty".