3213444 has 24 divisors (see below), whose sum is σ = 8075200. Its totient is φ = 988704.

The previous prime is 3213439. The next prime is 3213473. The reversal of 3213444 is 4443123.

It is a super-2 number, since 2×3213444² = 20652444682272, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 3213444.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10144 + ... + 10455.

Almost surely, 2^3213444 is an apocalyptic number.

It is an amenable number.

3213444 is an abundant number, since it is smaller than the sum of its proper divisors (4861756).

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

3213444 is a wasteful number, since it uses less digits than its factorization.

3213444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20619 (or 20617 counting only the distinct ones).

The product of its digits is 1152, while the sum is 21.

The square root of 3213444 is about 1792.6081557329. The cubic root of 3213444 is about 147.5673387827.

Adding to 3213444 its reverse (4443123), we get a palindrome (7656567).

The spelling of 3213444 in words is "three million, two hundred thirteen thousand, four hundred forty-four".