6444236 has 6 divisors (see below), whose sum is σ = 11277420. Its totient is φ = 3222116.

The previous prime is 6444233. The next prime is 6444259. The reversal of 6444236 is 6324446.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6444199 and 6444208.

It is not an unprimeable number, because it can be changed into a prime (6444233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805526 + ... + 805533.

It is an arithmetic number, because the mean of its divisors is an integer number (1879570).

Almost surely, 2^6444236 is an apocalyptic number.

It is an amenable number.

6444236 is a deficient number, since it is larger than the sum of its proper divisors (4833184).

6444236 is a wasteful number, since it uses less digits than its factorization.

6444236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611063 (or 1611061 counting only the distinct ones).

The product of its digits is 13824, while the sum is 29.

The square root of 6444236 is about 2538.5499798113. The cubic root of 6444236 is about 186.0903326588.

The spelling of 6444236 in words is "six million, four hundred forty-four thousand, two hundred thirty-six".