1044442421 has 8 divisors (see below), whose sum is σ = 1176146688. Its totient is φ = 918864000.

The previous prime is 1044442417. The next prime is 1044442423. The reversal of 1044442421 is 1242444401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1044442421 - 2² = 1044442417 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 (1044442423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1531100 + ... + 1531781.

It is an arithmetic number, because the mean of its divisors is an integer number (147018336).

Almost surely, 2^1044442421 is an apocalyptic number.

1044442421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1044442421 is a deficient number, since it is larger than the sum of its proper divisors (131704267).

1044442421 is a wasteful number, since it uses less digits than its factorization.

1044442421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3062923.

The product of its (nonzero) digits is 4096, while the sum is 26.

The square root of 1044442421 is about 32317.8344107398. The cubic root of 1044442421 is about 1014.5999445846.

Adding to 1044442421 its reverse (1242444401), we get a palindrome (2286886822).

The spelling of 1044442421 in words is "one billion, forty-four million, four hundred forty-two thousand, four hundred twenty-one".