4442340 has 72 divisors (see below), whose sum is σ = 14478912. Its totient is φ = 1014720.

The previous prime is 4442327. The next prime is 4442357. The reversal of 4442340 is 432444.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2185 + ... + 3695.

It is an arithmetic number, because the mean of its divisors is an integer number (201096).

Almost surely, 2^4442340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4442340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7239456).

4442340 is an abundant number, since it is smaller than the sum of its proper divisors (10036572).

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

4442340 is a wasteful number, since it uses less digits than its factorization.

4442340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537 (or 1528 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 4442340 is about 2107.6859348584. The cubic root of 4442340 is about 164.3881841603.

Adding to 4442340 its reverse (432444), we get a palindrome (4874784).

The spelling of 4442340 in words is "four million, four hundred forty-two thousand, three hundred forty".