9484979640 has 128 divisors (see below), whose sum is σ = 29053857600. Its totient is φ = 2476298240.

The previous prime is 9484979597. The next prime is 9484979641. The reversal of 9484979640 is 469794849.

It is a happy number.

9484979640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9484979641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3617530 + ... + 3620150.

Almost surely, 2^9484979640 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 9484979640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14526928800).

9484979640 is an abundant number, since it is smaller than the sum of its proper divisors (19568877960).

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

9484979640 is a wasteful number, since it uses less digits than its factorization.

9484979640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3257 (or 3253 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 60.

The square root of 9484979640 is about 97390.8601461143. The cubic root of 9484979640 is about 2116.7949999139.

The spelling of 9484979640 in words is "nine billion, four hundred eighty-four million, nine hundred seventy-nine thousand, six hundred forty".