1050306421 has 4 divisors (see below), whose sum is σ = 1051940512. Its totient is φ = 1048672332.

The previous prime is 1050306419. The next prime is 1050306437. The reversal of 1050306421 is 1246030501.

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 1050306421 - 2¹ = 1050306419 is a prime.

It is a super-2 number, since 2×1050306421² = 2206287155987658482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1050306392 and 1050306401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1050306221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816081 + ... + 817366.

It is an arithmetic number, because the mean of its divisors is an integer number (262985128).

Almost surely, 2^1050306421 is an apocalyptic number.

It is an amenable number.

1050306421 is a deficient number, since it is larger than the sum of its proper divisors (1634091).

1050306421 is an equidigital number, since it uses as much as digits as its factorization.

1050306421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634090.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1050306421 is about 32408.4313258140. The cubic root of 1050306421 is about 1016.4952186868.

Adding to 1050306421 its reverse (1246030501), we get a palindrome (2296336922).

The spelling of 1050306421 in words is "one billion, fifty million, three hundred six thousand, four hundred twenty-one".