492904491 has 16 divisors (see below), whose sum is σ = 679916064. Its totient is φ = 317378304.

The previous prime is 492904471. The next prime is 492904519. The reversal of 492904491 is 194409294.

It is not a de Polignac number, because 492904491 - 2⁵ = 492904459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (492904471) 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, 1000 + ... + 31413.

It is an arithmetic number, because the mean of its divisors is an integer number (42494754).

Almost surely, 2^492904491 is an apocalyptic number.

492904491 is a deficient number, since it is larger than the sum of its proper divisors (187011573).

492904491 is a wasteful number, since it uses less digits than its factorization.

492904491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32590.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 492904491 is about 22201.4524524861. The cubic root of 492904491 is about 789.9281518806.

The spelling of 492904491 in words is "four hundred ninety-two million, nine hundred four thousand, four hundred ninety-one".