1234320420 has 24 divisors (see below), whose sum is σ = 3456097344. Its totient is φ = 329152096.

The previous prime is 1234320413. The next prime is 1234320433. The reversal of 1234320420 is 240234321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10285944 + ... + 10286063.

It is an arithmetic number, because the mean of its divisors is an integer number (144004056).

Almost surely, 2^1234320420 is an apocalyptic number.

1234320420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1234320420 is an abundant number, since it is smaller than the sum of its proper divisors (2221776924).

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

1234320420 is a wasteful number, since it uses less digits than its factorization.

1234320420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20572019 (or 20572017 counting only the distinct ones).

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

The square root of 1234320420 is about 35132.8965500996. The cubic root of 1234320420 is about 1072.6942959534.

Adding to 1234320420 its reverse (240234321), we get a palindrome (1474554741).

The spelling of 1234320420 in words is "one billion, two hundred thirty-four million, three hundred twenty thousand, four hundred twenty".