6411444 has 48 divisors (see below), whose sum is σ = 16360512. Its totient is φ = 1942272.

The previous prime is 6411439. The next prime is 6411467. The reversal of 6411444 is 4441146.

It is a super-2 number, since 2×6411444² = 82213228330272, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11107 + ... + 11669.

It is an arithmetic number, because the mean of its divisors is an integer number (340844).

Almost surely, 2^6411444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6411444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8180256).

6411444 is an abundant number, since it is smaller than the sum of its proper divisors (9949068).

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

6411444 is a wasteful number, since it uses less digits than its factorization.

6411444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656 (or 654 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 6411444 is about 2532.0829370303. The cubic root of 6411444 is about 185.7741506638.

The spelling of 6411444 in words is "six million, four hundred eleven thousand, four hundred forty-four".