9315397440 has 224 divisors, whose sum is σ = 34292194560. Its totient is φ = 2376050688.

The previous prime is 9315397409. The next prime is 9315397459. The reversal of 9315397440 is 447935139.

9315397440 is a `hidden beast` number, since 9 + 3 + 1 + 539 + 74 + 40 = 666.

9315397440 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 (45).

It is a congruent number.

It is an unprimeable number.

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, 175282 + ... + 222158.

Almost surely, 2^9315397440 is an apocalyptic number.

9315397440 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 9315397440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17146097280).

9315397440 is an abundant number, since it is smaller than the sum of its proper divisors (24976797120).

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

9315397440 is a wasteful number, since it uses less digits than its factorization.

9315397440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46926 (or 46910 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 9315397440 is about 96516.3066015272. The cubic root of 9315397440 is about 2104.1036492284.

The spelling of 9315397440 in words is "nine billion, three hundred fifteen million, three hundred ninety-seven thousand, four hundred forty".