6372644 has 12 divisors (see below), whose sum is σ = 11183004. Its totient is φ = 3177504.

The previous prime is 6372623. The next prime is 6372647. The reversal of 6372644 is 4462736.

It can be written as a sum of positive squares in 2 ways, for example, as 4840000 + 1532644 = 2200^2 + 1238^2 .

It is a super-2 number, since 2×6372644² = 81221183101472, which contains 22 as substring.

It is a d-powerful number, because it can be written as 6³ + 3 + 7⁸ + 2³ + 6⁷ + 4⁸ + 4⁹ .

It is a self number, because there is not a number n which added to its sum of digits gives 6372644.

It is not an unprimeable number, because it can be changed into a prime (6372647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419 + ... + 3594.

It is an arithmetic number, because the mean of its divisors is an integer number (931917).

Almost surely, 2^6372644 is an apocalyptic number.

It is an amenable number.

6372644 is a deficient number, since it is larger than the sum of its proper divisors (4810360).

6372644 is a wasteful number, since it uses less digits than its factorization.

6372644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4414 (or 4412 counting only the distinct ones).

The product of its digits is 24192, while the sum is 32.

The square root of 6372644 is about 2524.4096339540. The cubic root of 6372644 is about 185.3986436605.

The spelling of 6372644 in words is "six million, three hundred seventy-two thousand, six hundred forty-four".