1044030021 has 4 divisors (see below), whose sum is σ = 1392040032. Its totient is φ = 696020012.

The previous prime is 1044030017. The next prime is 1044030023. The reversal of 1044030021 is 1200304401.

1044030021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1044030021 - 2² = 1044030017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044030023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174005001 + ... + 174005006.

It is an arithmetic number, because the mean of its divisors is an integer number (348010008).

Almost surely, 2^1044030021 is an apocalyptic number.

It is an amenable number.

1044030021 is a deficient number, since it is larger than the sum of its proper divisors (348010011).

1044030021 is an equidigital number, since it uses as much as digits as its factorization.

1044030021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348010010.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1044030021 is about 32311.4534027796. The cubic root of 1044030021 is about 1014.4663881235.

Adding to 1044030021 its reverse (1200304401), we get a palindrome (2244334422).

The spelling of 1044030021 in words is "one billion, forty-four million, thirty thousand, twenty-one".