9722144 has 12 divisors (see below), whose sum is σ = 19140534. Its totient is φ = 4861056.

The previous prime is 9722137. The next prime is 9722177. The reversal of 9722144 is 4412279.

It can be written as a sum of positive squares in only one way, i.e., 7728400 + 1993744 = 2780^2 + 1412^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151877 + ... + 151940.

Almost surely, 2^9722144 is an apocalyptic number.

It is an amenable number.

9722144 is a deficient number, since it is larger than the sum of its proper divisors (9418390).

9722144 is a wasteful number, since it uses less digits than its factorization.

9722144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303827 (or 303819 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 9722144 is about 3118.0352788254. The cubic root of 9722144 is about 213.4292884312.

It can be divided in two parts, 97221 and 44, that multiplied together give a palindrome (4277724).

The spelling of 9722144 in words is "nine million, seven hundred twenty-two thousand, one hundred forty-four".