1422431421 has 4 divisors (see below), whose sum is σ = 1896575232. Its totient is φ = 948287612.

The previous prime is 1422431347. The next prime is 1422431449. The reversal of 1422431421 is 1241342241.

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.

It is a cyclic number.

It is not a de Polignac number, because 1422431421 - 2¹⁰ = 1422430397 is a prime.

It is a super-2 number, since 2×1422431421² = 4046622294896158482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1422431391 and 1422431400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422431471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237071901 + ... + 237071906.

It is an arithmetic number, because the mean of its divisors is an integer number (474143808).

Almost surely, 2^1422431421 is an apocalyptic number.

It is an amenable number.

1422431421 is a deficient number, since it is larger than the sum of its proper divisors (474143811).

1422431421 is an equidigital number, since it uses as much as digits as its factorization.

1422431421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474143810.

The product of its digits is 1536, while the sum is 24.

The square root of 1422431421 is about 37715.1351714401. The cubic root of 1422431421 is about 1124.6320234540.

Adding to 1422431421 its reverse (1241342241), we get a palindrome (2663773662).

The spelling of 1422431421 in words is "one billion, four hundred twenty-two million, four hundred thirty-one thousand, four hundred twenty-one".