1220144324 has 24 divisors (see below), whose sum is σ = 2455268928. Its totient is φ = 519708960.

The previous prime is 1220144311. The next prime is 1220144327. The reversal of 1220144324 is 4234410221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220144324.

It is not an unprimeable number, because it can be changed into a prime (1220144327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129107 + ... + 138234.

It is an arithmetic number, because the mean of its divisors is an integer number (102302872).

Almost surely, 2^1220144324 is an apocalyptic number.

1220144324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1220144324 is an abundant number, since it is smaller than the sum of its proper divisors (1235124604).

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

1220144324 is a wasteful number, since it uses less digits than its factorization.

1220144324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267515 (or 267513 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1220144324 is about 34930.5643240987. The cubic root of 1220144324 is about 1068.5718635926.

Adding to 1220144324 its reverse (4234410221), we get a palindrome (5454554545).

The spelling of 1220144324 in words is "one billion, two hundred twenty million, one hundred forty-four thousand, three hundred twenty-four".