1044002089 has 8 divisors (see below), whose sum is σ = 1127499912. Its totient is φ = 960960000.

The previous prime is 1044002087. The next prime is 1044002111. The reversal of 1044002089 is 9802004401.

It can be written as a sum of positive squares in 4 ways, for example, as 20322064 + 1023680025 = 4508^2 + 31995^2 .

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

It is not a de Polignac number, because 1044002089 - 2¹ = 1044002087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1044002081) 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, 109162 + ... + 118339.

It is an arithmetic number, because the mean of its divisors is an integer number (140937489).

Almost surely, 2^1044002089 is an apocalyptic number.

It is an amenable number.

1044002089 is a deficient number, since it is larger than the sum of its proper divisors (83497823).

1044002089 is a wasteful number, since it uses less digits than its factorization.

1044002089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227867.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1044002089 is about 32311.0211692543. The cubic root of 1044002089 is about 1014.4573410248.

The spelling of 1044002089 in words is "one billion, forty-four million, two thousand, eighty-nine".