4443864 has 16 divisors (see below), whose sum is σ = 11109720. Its totient is φ = 1481280.

The previous prime is 4443863. The next prime is 4443877. The reversal of 4443864 is 4683444.

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 (4443863) 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, 92557 + ... + 92604.

Almost surely, 2^4443864 is an apocalyptic number.

It is an amenable number.

4443864 is an abundant number, since it is smaller than the sum of its proper divisors (6665856).

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

4443864 is a wasteful number, since it uses less digits than its factorization.

4443864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185170 (or 185166 counting only the distinct ones).

The product of its digits is 36864, while the sum is 33.

The square root of 4443864 is about 2108.0474377964. The cubic root of 4443864 is about 164.4069804816.

The spelling of 4443864 in words is "four million, four hundred forty-three thousand, eight hundred sixty-four".