2004428771 has 8 divisors (see below), whose sum is σ = 2127029760. Its totient is φ = 1884782152.

The previous prime is 2004428759. The next prime is 2004428791. The reversal of 2004428771 is 1778244002.

It is a happy number.

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 2004428771 - 2¹⁸ = 2004166627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2004428791) 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, 737195 + ... + 739908.

It is an arithmetic number, because the mean of its divisors is an integer number (265878720).

Almost surely, 2^2004428771 is an apocalyptic number.

2004428771 is a deficient number, since it is larger than the sum of its proper divisors (122600989).

2004428771 is a wasteful number, since it uses less digits than its factorization.

2004428771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477185.

The product of its (nonzero) digits is 25088, while the sum is 35.

The square root of 2004428771 is about 44770.8473339516. The cubic root of 2004428771 is about 1260.8503479254.

The spelling of 2004428771 in words is "two billion, four million, four hundred twenty-eight thousand, seven hundred seventy-one".