1421430241 has 16 divisors (see below), whose sum is σ = 1773168768. Its totient is φ = 1106985600.

The previous prime is 1421430203. The next prime is 1421430293. The reversal of 1421430241 is 1420341241.

It is a happy number.

It is not a de Polignac number, because 1421430241 - 2¹³ = 1421422049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1421431241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171591 + ... + 179683.

It is an arithmetic number, because the mean of its divisors is an integer number (110823048).

Almost surely, 2^1421430241 is an apocalyptic number.

1421430241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1421430241 is a deficient number, since it is larger than the sum of its proper divisors (351738527).

1421430241 is a wasteful number, since it uses less digits than its factorization.

1421430241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10392.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1421430241 is about 37701.8599143331. The cubic root of 1421430241 is about 1124.3681036744.

Adding to 1421430241 its reverse (1420341241), we get a palindrome (2841771482).

The spelling of 1421430241 in words is "one billion, four hundred twenty-one million, four hundred thirty thousand, two hundred forty-one".