964343520 has 432 divisors, whose sum is σ = 3898964160. Its totient is φ = 216373248.

The previous prime is 964343507. The next prime is 964343521. The reversal of 964343520 is 25343469.

964343520 is a `hidden beast` number, since 9 + 643 + 4 + 3 + 5 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (964343521) 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 71 ways as a sum of consecutive naturals, for example, 5574154 + ... + 5574326.

It is an arithmetic number, because the mean of its divisors is an integer number (9025380).

Almost surely, 2^964343520 is an apocalyptic number.

964343520 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 964343520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1949482080).

964343520 is an abundant number, since it is smaller than the sum of its proper divisors (2934620640).

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

964343520 is a wasteful number, since it uses less digits than its factorization.

964343520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 964343520 is about 31053.8809168838. The cubic root of 964343520 is about 987.9703750672.

Adding to 964343520 its reverse (25343469), we get a palindrome (989686989).

The spelling of 964343520 in words is "nine hundred sixty-four million, three hundred forty-three thousand, five hundred twenty".