1042244421 has 16 divisors (see below), whose sum is σ = 1401624000. Its totient is φ = 688865408.

The previous prime is 1042244389. The next prime is 1042244479. The reversal of 1042244421 is 1244422401.

It is a cyclic number.

It is not a de Polignac number, because 1042244421 - 2⁵ = 1042244389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1042244391 and 1042244400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042244491) 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 15 ways as a sum of consecutive naturals, for example, 273910 + ... + 277688.

It is an arithmetic number, because the mean of its divisors is an integer number (87601500).

Almost surely, 2^1042244421 is an apocalyptic number.

It is an amenable number.

1042244421 is a deficient number, since it is larger than the sum of its proper divisors (359379579).

1042244421 is a wasteful number, since it uses less digits than its factorization.

1042244421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4548.

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 1042244421 is about 32283.8105092940. The cubic root of 1042244421 is about 1013.8877122800.

Adding to 1042244421 its reverse (1244422401), we get a palindrome (2286666822).

The spelling of 1042244421 in words is "one billion, forty-two million, two hundred forty-four thousand, four hundred twenty-one".