9722649600 has 396 divisors, whose sum is σ = 36660378040. Its totient is φ = 2455142400.

The previous prime is 9722649577. The next prime is 9722649641. The reversal of 9722649600 is 69462279.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4376490 + ... + 4378710.

Almost surely, 2^9722649600 is an apocalyptic number.

9722649600 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9722649600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18330189020).

9722649600 is an abundant number, since it is smaller than the sum of its proper divisors (26937728440).

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

9722649600 is a wasteful number, since it uses less digits than its factorization.

9722649600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2276 (or 2250 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 9722649600 is about 98603.4968953941. The cubic root of 9722649600 is about 2134.3298816301.

The spelling of 9722649600 in words is "nine billion, seven hundred twenty-two million, six hundred forty-nine thousand, six hundred".