928236640 has 96 divisors (see below), whose sum is σ = 2388204000. Its totient is φ = 339591168.

The previous prime is 928236637. The next prime is 928236641. The reversal of 928236640 is 46632829.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 928236593 and 928236602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (928236641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82896 + ... + 93424.

It is an arithmetic number, because the mean of its divisors is an integer number (24877125).

Almost surely, 2^928236640 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 928236640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1194102000).

928236640 is an abundant number, since it is smaller than the sum of its proper divisors (1459967360).

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

928236640 is a wasteful number, since it uses less digits than its factorization.

928236640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10592 (or 10584 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 928236640 is about 30466.9762201634. The cubic root of 928236640 is about 975.4826941507.

The spelling of 928236640 in words is "nine hundred twenty-eight million, two hundred thirty-six thousand, six hundred forty".