1220468424 has 128 divisors (see below), whose sum is σ = 3547514880. Its totient is φ = 342720000.

The previous prime is 1220468423. The next prime is 1220468461. The reversal of 1220468424 is 4248640221.

It is not an unprimeable number, because it can be changed into a prime (1220468423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4343164 + ... + 4343444.

It is an arithmetic number, because the mean of its divisors is an integer number (27714960).

Almost surely, 2^1220468424 is an apocalyptic number.

1220468424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220468424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1773757440).

1220468424 is an abundant number, since it is smaller than the sum of its proper divisors (2327046456).

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

1220468424 is a wasteful number, since it uses less digits than its factorization.

1220468424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651 (or 647 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

The square root of 1220468424 is about 34935.2032196751. The cubic root of 1220468424 is about 1068.6664681064. Note that the first 3 decimals are identical.

The spelling of 1220468424 in words is "one billion, two hundred twenty million, four hundred sixty-eight thousand, four hundred twenty-four".