4144644 has 36 divisors (see below), whose sum is σ = 11974144. Its totient is φ = 1184112.

The previous prime is 4144633. The next prime is 4144663. The reversal of 4144644 is 4464414.

4144644 is a `hidden beast` number, since 4 + 14 + 4 + 644 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7972 + ... + 8475.

Almost surely, 2^4144644 is an apocalyptic number.

It is an amenable number.

4144644 is an abundant number, since it is smaller than the sum of its proper divisors (7829500).

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

4144644 is a wasteful number, since it uses less digits than its factorization.

4144644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16464 (or 16459 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 4144644 is about 2035.8398758252. The cubic root of 4144644 is about 160.6308944730.

The spelling of 4144644 in words is "four million, one hundred forty-four thousand, six hundred forty-four".