7144144 has 40 divisors (see below), whose sum is σ = 15945408. Its totient is φ = 3037440.

The previous prime is 7144129. The next prime is 7144153. The reversal of 7144144 is 4414417.

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

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, 25284 + ... + 25564.

Almost surely, 2^7144144 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 7144144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7972704).

7144144 is an abundant number, since it is smaller than the sum of its proper divisors (8801264).

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

7144144 is a wasteful number, since it uses less digits than its factorization.

7144144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523 (or 517 counting only the distinct ones).

The product of its digits is 1792, while the sum is 25.

The square root of 7144144 is about 2672.8531572086. The cubic root of 7144144 is about 192.5972432729.

The spelling of 7144144 in words is "seven million, one hundred forty-four thousand, one hundred forty-four".