492131906 has 16 divisors (see below), whose sum is σ = 846642624. Its totient is φ = 210166704.

The previous prime is 492131903. The next prime is 492131917. The reversal of 492131906 is 609131294.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (492131903) 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, 58145 + ... + 66068.

It is an arithmetic number, because the mean of its divisors is an integer number (52915164).

Almost surely, 2^492131906 is an apocalyptic number.

492131906 is a deficient number, since it is larger than the sum of its proper divisors (354510718).

492131906 is a wasteful number, since it uses less digits than its factorization.

492131906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124505.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 492131906 is about 22184.0462044236. The cubic root of 492131906 is about 789.5152214601.

The spelling of 492131906 in words is "four hundred ninety-two million, one hundred thirty-one thousand, nine hundred six".