492578905 has 48 divisors (see below), whose sum is σ = 742420224. Its totient is φ = 305516160.

The previous prime is 492578839. The next prime is 492578923. The reversal of 492578905 is 509875294.

It is not a de Polignac number, because 492578905 - 2⁹ = 492578393 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1583700 + ... + 1584010.

It is an arithmetic number, because the mean of its divisors is an integer number (15467088).

Almost surely, 2^492578905 is an apocalyptic number.

It is an amenable number.

492578905 is a deficient number, since it is larger than the sum of its proper divisors (249841319).

492578905 is a wasteful number, since it uses less digits than its factorization.

492578905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 49.

The square root of 492578905 is about 22194.1187029357. The cubic root of 492578905 is about 789.7541856585.

The spelling of 492578905 in words is "four hundred ninety-two million, five hundred seventy-eight thousand, nine hundred five".