6649044 has 12 divisors (see below), whose sum is σ = 15514464. Its totient is φ = 2216344.

The previous prime is 6649007. The next prime is 6649063. The reversal of 6649044 is 4409466.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×6649044² = 88419572227872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6648996 and 6649014.

It is a congruent number.

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, 277032 + ... + 277055.

It is an arithmetic number, because the mean of its divisors is an integer number (1292872).

Almost surely, 2^6649044 is an apocalyptic number.

It is an amenable number.

6649044 is an abundant number, since it is smaller than the sum of its proper divisors (8865420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6649044 is a wasteful number, since it uses less digits than its factorization.

6649044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554094 (or 554092 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 6649044 is about 2578.5740245337. The cubic root of 6649044 is about 188.0412237953.

The spelling of 6649044 in words is "six million, six hundred forty-nine thousand, forty-four".