3447444 has 144 divisors (see below), whose sum is σ = 11261376. Its totient is φ = 806400.

The previous prime is 3447443. The next prime is 3447463. The reversal of 3447444 is 4447443.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3447443) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84064 + ... + 84104.

It is an arithmetic number, because the mean of its divisors is an integer number (78204).

Almost surely, 2^3447444 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 3447444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5630688).

3447444 is an abundant number, since it is smaller than the sum of its proper divisors (7813932).

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

3447444 is a wasteful number, since it uses less digits than its factorization.

3447444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 77 counting only the distinct ones).

The product of its digits is 21504, while the sum is 30.

The square root of 3447444 is about 1856.7293825434. The cubic root of 3447444 is about 151.0656557020.

Subtracting 3447444 from its reverse (4447443), we obtain a palindrome (999999).

The spelling of 3447444 in words is "three million, four hundred forty-seven thousand, four hundred forty-four".