9915264 has 128 divisors (see below), whose sum is σ = 31008000. Its totient is φ = 3110400.

The previous prime is 9915229. The next prime is 9915281. The reversal of 9915264 is 4625199.

It is a tau number, because it is divible by the number of its divisors (128).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65589 + ... + 65739.

It is an arithmetic number, because the mean of its divisors is an integer number (242250).

Almost surely, 2^9915264 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 9915264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15504000).

9915264 is an abundant number, since it is smaller than the sum of its proper divisors (21092736).

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

9915264 is a wasteful number, since it uses less digits than its factorization.

9915264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 175 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 9915264 is about 3148.8512190956. The cubic root of 9915264 is about 214.8332148006.

The spelling of 9915264 in words is "nine million, nine hundred fifteen thousand, two hundred sixty-four".