1043422421 has 4 divisors (see below), whose sum is σ = 1044120000. Its totient is φ = 1042724844.

The previous prime is 1043422417. The next prime is 1043422453. The reversal of 1043422421 is 1242243401.

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 1043422421 - 2² = 1043422417 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 (1043422621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346541 + ... + 349538.

It is an arithmetic number, because the mean of its divisors is an integer number (261030000).

Almost surely, 2^1043422421 is an apocalyptic number.

It is an amenable number.

1043422421 is a deficient number, since it is larger than the sum of its proper divisors (697579).

1043422421 is an equidigital number, since it uses as much as digits as its factorization.

1043422421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697578.

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

The square root of 1043422421 is about 32302.0497956399. The cubic root of 1043422421 is about 1014.2695517049.

Adding to 1043422421 its reverse (1242243401), we get a palindrome (2285665822).

The spelling of 1043422421 in words is "one billion, forty-three million, four hundred twenty-two thousand, four hundred twenty-one".