1043421239 has 12 divisors (see below), whose sum is σ = 1214990568. Its totient is φ = 893466000.

The previous prime is 1043421227. The next prime is 1043421311. The reversal of 1043421239 is 9321243401.

It is a de Polignac number, because none of the positive numbers 2^k-1043421239 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 (1043421439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41369 + ... + 61629.

It is an arithmetic number, because the mean of its divisors is an integer number (101249214).

Almost surely, 2^1043421239 is an apocalyptic number.

1043421239 is a deficient number, since it is larger than the sum of its proper divisors (171569329).

1043421239 is a wasteful number, since it uses less digits than its factorization.

1043421239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21326 (or 21319 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1043421239 is about 32302.0314995822. The cubic root of 1043421239 is about 1014.2691687130.

The spelling of 1043421239 in words is "one billion, forty-three million, four hundred twenty-one thousand, two hundred thirty-nine".