1004432004644 has 12 divisors (see below), whose sum is σ = 1757765616768. Its totient is φ = 502213257000.

The previous prime is 1004432004613. The next prime is 1004432004659. The reversal of 1004432004644 is 4464002344001.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1004432004644.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291749 + ... + 1447059.

It is an arithmetic number, because the mean of its divisors is an integer number (146480468064).

Almost surely, 2^{1004432004644} is an apocalyptic number.

It is an amenable number.

1004432004644 is a deficient number, since it is larger than the sum of its proper divisors (753333612124).

1004432004644 is a wasteful number, since it uses less digits than its factorization.

1004432004644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372666 (or 1372664 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 1004432004644 its reverse (4464002344001), we get a palindrome (5468434348645).

The spelling of 1004432004644 in words is "one trillion, four billion, four hundred thirty-two million, four thousand, six hundred forty-four".