1234403220 has 24 divisors (see below), whose sum is σ = 3456329184. Its totient is φ = 329174176.

The previous prime is 1234403207. The next prime is 1234403221. The reversal of 1234403220 is 223044321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234403221) 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 7 ways as a sum of consecutive naturals, for example, 10286634 + ... + 10286753.

It is an arithmetic number, because the mean of its divisors is an integer number (144013716).

Almost surely, 2^1234403220 is an apocalyptic number.

1234403220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1234403220 is an abundant number, since it is smaller than the sum of its proper divisors (2221925964).

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

1234403220 is a wasteful number, since it uses less digits than its factorization.

1234403220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20573399 (or 20573397 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1234403220 is about 35134.0749131096. The cubic root of 1234403220 is about 1072.7182813789.

Adding to 1234403220 its reverse (223044321), we get a palindrome (1457447541).

The spelling of 1234403220 in words is "one billion, two hundred thirty-four million, four hundred three thousand, two hundred twenty".