1422043421 has 8 divisors (see below), whose sum is σ = 1537729920. Its totient is φ = 1309916608.

The previous prime is 1422043397. The next prime is 1422043433. The reversal of 1422043421 is 1243402241.

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 1422043421 - 2¹⁰ = 1422042397 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 (1422043621) 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, 889091 + ... + 890688.

It is an arithmetic number, because the mean of its divisors is an integer number (192216240).

Almost surely, 2^1422043421 is an apocalyptic number.

It is an amenable number.

1422043421 is a deficient number, since it is larger than the sum of its proper divisors (115686499).

1422043421 is a wasteful number, since it uses less digits than its factorization.

1422043421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779843.

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

The square root of 1422043421 is about 37709.9909970819. The cubic root of 1422043421 is about 1124.5297579716.

Adding to 1422043421 its reverse (1243402241), we get a palindrome (2665445662).

The spelling of 1422043421 in words is "one billion, four hundred twenty-two million, forty-three thousand, four hundred twenty-one".