9372464640 has 800 divisors, whose sum is σ = 41923816704. Its totient is φ = 1944207360.

The previous prime is 9372464539. The next prime is 9372464641. The reversal of 9372464640 is 464642739.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9372464641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 15966427 + ... + 15967013.

Almost surely, 2^9372464640 is an apocalyptic number.

9372464640 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 9372464640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20961908352).

9372464640 is an abundant number, since it is smaller than the sum of its proper divisors (32551352064).

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

9372464640 is a wasteful number, since it uses less digits than its factorization.

9372464640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640 (or 615 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The square root of 9372464640 is about 96811.4902271419. The cubic root of 9372464640 is about 2108.3915656330.

The spelling of 9372464640 in words is "nine billion, three hundred seventy-two million, four hundred sixty-four thousand, six hundred forty".