4144440 has 32 divisors (see below), whose sum is σ = 12433680. Its totient is φ = 1105152.

The previous prime is 4144423. The next prime is 4144457. The reversal of 4144440 is 444414.

It is an interprime number because it is at equal distance from previous prime (4144423) and next prime (4144457).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17149 + ... + 17388.

Almost surely, 2^4144440 is an apocalyptic number.

4144440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4144440 is an abundant number, since it is smaller than the sum of its proper divisors (8289240).

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

4144440 is a wasteful number, since it uses less digits than its factorization.

4144440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34551 (or 34547 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 4144440 is about 2035.7897730365. The cubic root of 4144440 is about 160.6282590042.

Adding to 4144440 its reverse (444414), we get a palindrome (4588854).

The spelling of 4144440 in words is "four million, one hundred forty-four thousand, four hundred forty".