495681804 has 72 divisors (see below), whose sum is σ = 1364454000. Its totient is φ = 151127424.

The previous prime is 495681793. The next prime is 495681839. The reversal of 495681804 is 408186594.

495681804 is a `hidden beast` number, since 4 + 9 + 568 + 1 + 80 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 495681804.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7342 + ... + 32330.

It is an arithmetic number, because the mean of its divisors is an integer number (18950750).

Almost surely, 2^495681804 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 495681804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (682227000).

495681804 is an abundant number, since it is smaller than the sum of its proper divisors (868772196).

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

495681804 is a wasteful number, since it uses less digits than its factorization.

495681804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25047 (or 25042 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 495681804 is about 22263.9125941511. The cubic root of 495681804 is about 791.4090135109.

The spelling of 495681804 in words is "four hundred ninety-five million, six hundred eighty-one thousand, eight hundred four".