905831480 has 32 divisors (see below), whose sum is σ = 2076580800. Its totient is φ = 355495296.

The previous prime is 905831477. The next prime is 905831489. The reversal of 905831480 is 84138509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (905831489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211520 + ... + 215759.

It is an arithmetic number, because the mean of its divisors is an integer number (64893150).

Almost surely, 2^905831480 is an apocalyptic number.

It is an amenable number.

905831480 is an abundant number, since it is smaller than the sum of its proper divisors (1170749320).

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

905831480 is a wasteful number, since it uses less digits than its factorization.

905831480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427343 (or 427339 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 905831480 is about 30097.0344054028. The cubic root of 905831480 is about 967.5701680887.

Adding to 905831480 its reverse (84138509), we get a palindrome (989969989).

The spelling of 905831480 in words is "nine hundred five million, eight hundred thirty-one thousand, four hundred eighty".