9219944448 has 624 divisors, whose sum is σ = 32943546720. Its totient is φ = 2530344960.

The previous prime is 9219944443. The next prime is 9219944507. The reversal of 9219944448 is 8444499129.

It is a happy number.

9219944448 is a `hidden beast` number, since 9 + 2 + 199 + 4 + 4 + 448 = 666.

It is a tau number, because it is divible by the number of its divisors (624).

It is a super-3 number, since 3×9219944448³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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

It is a junction number, because it is equal to n+sod(n) for n = 9219944394 and 9219944403.

It is not an unprimeable number, because it can be changed into a prime (9219944443) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 173961190 + ... + 173961242.

Almost surely, 2^9219944448 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 9219944448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16471773360).

9219944448 is an abundant number, since it is smaller than the sum of its proper divisors (23723602272).

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

9219944448 is a wasteful number, since it uses less digits than its factorization.

9219944448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 82 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The square root of 9219944448 is about 96020.5418022623. The cubic root of 9219944448 is about 2096.8921866548.

The spelling of 9219944448 in words is "nine billion, two hundred nineteen million, nine hundred forty-four thousand, four hundred forty-eight".