8724144 has 160 divisors (see below), whose sum is σ = 27998208. Its totient is φ = 2304000.

The previous prime is 8724143. The next prime is 8724161. The reversal of 8724144 is 4414278.

It is a super-2 number, since 2×8724144² = 152221377065472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8724143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 212764 + ... + 212804.

Almost surely, 2^8724144 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 8724144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13999104).

8724144 is an abundant number, since it is smaller than the sum of its proper divisors (19274064).

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

8724144 is a wasteful number, since it uses less digits than its factorization.

8724144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 101 counting only the distinct ones).

The product of its digits is 7168, while the sum is 30.

The square root of 8724144 is about 2953.6661964413. Note that the first 3 decimals coincide. The cubic root of 8724144 is about 205.8610933982.

The spelling of 8724144 in words is "eight million, seven hundred twenty-four thousand, one hundred forty-four".