605508904 has 128 divisors (see below), whose sum is σ = 1544417280. Its totient is φ = 214905600.

The previous prime is 605508889. The next prime is 605508961. The reversal of 605508904 is 409805506.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 664209 + ... + 665119.

It is an arithmetic number, because the mean of its divisors is an integer number (12065760).

Almost surely, 2^605508904 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 605508904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (772208640).

605508904 is an abundant number, since it is smaller than the sum of its proper divisors (938908376).

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

605508904 is a wasteful number, since it uses less digits than its factorization.

605508904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031 (or 1027 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 605508904 is about 24607.0905228554. The cubic root of 605508904 is about 846.0061327419.

The spelling of 605508904 in words is "six hundred five million, five hundred eight thousand, nine hundred four".