1220450330 has 32 divisors (see below), whose sum is σ = 2398733568. Its totient is φ = 443390400.

The previous prime is 1220450279. The next prime is 1220450347. The reversal of 1220450330 is 330540221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130904 + ... + 139916.

It is an arithmetic number, because the mean of its divisors is an integer number (74960424).

Almost surely, 2^1220450330 is an apocalyptic number.

1220450330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220450330 is a deficient number, since it is larger than the sum of its proper divisors (1178283238).

1220450330 is a wasteful number, since it uses less digits than its factorization.

1220450330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10262.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 1220450330 is about 34934.9442535694. The cubic root of 1220450330 is about 1068.6611869246.

Adding to 1220450330 its reverse (330540221), we get a palindrome (1550990551).

The spelling of 1220450330 in words is "one billion, two hundred twenty million, four hundred fifty thousand, three hundred thirty".