1004644 has 12 divisors (see below), whose sum is σ = 1850800. Its totient is φ = 475848.

The previous prime is 1004599. The next prime is 1004651. The reversal of 1004644 is 4464001.

1004644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (19).

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, 6534 + ... + 6685.

2^1004644 is an apocalyptic number.

It is an amenable number.

1004644 is a deficient number, since it is larger than the sum of its proper divisors (846156).

1004644 is a wasteful number, since it uses less digits than its factorization.

1004644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13242 (or 13240 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1004644 is about 1002.3193103996. The cubic root of 1004644 is about 100.1545609859.

Adding to 1004644 its reverse (4464001), we get a palindrome (5468645).

It can be divided in two parts, 100464 and 4, that multiplied together give a triangular number (401856 = T₈₉₆).

The spelling of 1004644 in words is "one million, four thousand, six hundred forty-four".