905930816 has 84 divisors (see below), whose sum is σ = 2214352188. Its totient is φ = 365395968.

The previous prime is 905930813. The next prime is 905930863. The reversal of 905930816 is 618039509.

It can be written as a sum of positive squares in 2 ways, for example, as 404170816 + 501760000 = 20104^2 + 22400^2 .

It is not an unprimeable number, because it can be changed into a prime (905930813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44816 + ... + 61808.

Almost surely, 2^905930816 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 905930816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1107176094).

905930816 is an abundant number, since it is smaller than the sum of its proper divisors (1308421372).

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

905930816 is a wasteful number, since it uses less digits than its factorization.

905930816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17036 (or 17019 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 905930816 is about 30098.6846224216. The cubic root of 905930816 is about 967.6055356080.

The spelling of 905930816 in words is "nine hundred five million, nine hundred thirty thousand, eight hundred sixteen".