9722400 has 72 divisors (see below), whose sum is σ = 31654224. Its totient is φ = 2592000.

The previous prime is 9722389. The next prime is 9722411. The reversal of 9722400 is 42279.

It is an interprime number because it is at equal distance from previous prime (9722389) and next prime (9722411).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 375 + ... + 4425.

It is an arithmetic number, because the mean of its divisors is an integer number (439642).

Almost surely, 2^9722400 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 9722400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15827112).

9722400 is an abundant number, since it is smaller than the sum of its proper divisors (21931824).

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

9722400 is a wasteful number, since it uses less digits than its factorization.

9722400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4074 (or 4061 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 9722400 is about 3118.0763300471. The cubic root of 9722400 is about 213.4311617291.

Adding to 9722400 its reverse (42279), we get a palindrome (9764679).

The spelling of 9722400 in words is "nine million, seven hundred twenty-two thousand, four hundred".