905830436 has 48 divisors (see below), whose sum is σ = 1930715136. Its totient is φ = 363421344.

The previous prime is 905830433. The next prime is 905830493. The reversal of 905830436 is 634038509.

It is a self number, because there is not a number n which added to its sum of digits gives 905830436.

It is not an unprimeable number, because it can be changed into a prime (905830433) 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, 15305 + ... + 45231.

It is an arithmetic number, because the mean of its divisors is an integer number (40223232).

Almost surely, 2^905830436 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 905830436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (965357568).

905830436 is an abundant number, since it is smaller than the sum of its proper divisors (1024884700).

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

905830436 is a wasteful number, since it uses less digits than its factorization.

905830436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30008 (or 30006 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 905830436 is about 30097.0170614963. The cubic root of 905830436 is about 967.5697963700.

The spelling of 905830436 in words is "nine hundred five million, eight hundred thirty thousand, four hundred thirty-six".