1424020321 has 8 divisors (see below), whose sum is σ = 1537174080. Its totient is φ = 1315136592.

The previous prime is 1424020289. The next prime is 1424020349. The reversal of 1424020321 is 1230204241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1424020321 - 2⁵ = 1424020289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1424020391) 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, 1066815 + ... + 1068148.

It is an arithmetic number, because the mean of its divisors is an integer number (192146760).

Almost surely, 2^1424020321 is an apocalyptic number.

It is an amenable number.

1424020321 is a deficient number, since it is larger than the sum of its proper divisors (113153759).

1424020321 is a wasteful number, since it uses less digits than its factorization.

1424020321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135015.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1424020321 is about 37736.1937799773. The cubic root of 1424020321 is about 1125.0506172452.

Adding to 1424020321 its reverse (1230204241), we get a palindrome (2654224562).

The spelling of 1424020321 in words is "one billion, four hundred twenty-four million, twenty thousand, three hundred twenty-one".