4144340 has 48 divisors (see below), whose sum is σ = 9166080. Its totient is φ = 1572480.

The previous prime is 4144331. The next prime is 4144363. The reversal of 4144340 is 434414.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52421 + ... + 52499.

It is an arithmetic number, because the mean of its divisors is an integer number (190960).

Almost surely, 2^4144340 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 4144340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4583040).

4144340 is an abundant number, since it is smaller than the sum of its proper divisors (5021740).

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

4144340 is a wasteful number, since it uses less digits than its factorization.

4144340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 4144340 is about 2035.7652123956. The cubic root of 4144340 is about 160.6269670761.

Adding to 4144340 its reverse (434414), we get a palindrome (4578754).

The spelling of 4144340 in words is "four million, one hundred forty-four thousand, three hundred forty".