2004446644 has 24 divisors (see below), whose sum is σ = 3578373288. Its totient is φ = 982101120.

The previous prime is 2004446627. The next prime is 2004446651. The reversal of 2004446644 is 4466444002.

It can be written as a sum of positive squares in 4 ways, for example, as 613156644 + 1391290000 = 24762^2 + 37300^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180534 + ... + 191314.

It is an arithmetic number, because the mean of its divisors is an integer number (149098887).

Almost surely, 2^2004446644 is an apocalyptic number.

It is an amenable number.

2004446644 is a deficient number, since it is larger than the sum of its proper divisors (1573926644).

2004446644 is a wasteful number, since it uses less digits than its factorization.

2004446644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11715 (or 11713 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

The square root of 2004446644 is about 44771.0469388421. The cubic root of 2004446644 is about 1260.8540954787.

The spelling of 2004446644 in words is "two billion, four million, four hundred forty-six thousand, six hundred forty-four".