1234413421 has 4 divisors (see below), whose sum is σ = 1234876192. Its totient is φ = 1233950652.

The previous prime is 1234413419. The next prime is 1234413431. The reversal of 1234413421 is 1243144321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1243144321 = 3037 ⋅409333.

It is a cyclic number.

It is not a de Polignac number, because 1234413421 - 2¹ = 1234413419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234413431) 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 3 ways as a sum of consecutive naturals, for example, 227361 + ... + 232726.

It is an arithmetic number, because the mean of its divisors is an integer number (308719048).

Almost surely, 2^1234413421 is an apocalyptic number.

It is an amenable number.

1234413421 is a deficient number, since it is larger than the sum of its proper divisors (462771).

1234413421 is an equidigital number, since it uses as much as digits as its factorization.

1234413421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462770.

The product of its digits is 2304, while the sum is 25.

The square root of 1234413421 is about 35134.2200852673. The cubic root of 1234413421 is about 1072.7212363207.

Adding to 1234413421 its reverse (1243144321), we get a palindrome (2477557742).

The spelling of 1234413421 in words is "one billion, two hundred thirty-four million, four hundred thirteen thousand, four hundred twenty-one".