492870181 has 4 divisors (see below), whose sum is σ = 492914592. Its totient is φ = 492825772.

The previous prime is 492870113. The next prime is 492870187. The reversal of 492870181 is 181078294.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 492870181 - 2⁹ = 492869669 is a prime.

It is a super-2 number, since 2×492870181² = 485842030637945522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492870187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10446 + ... + 33088.

It is an arithmetic number, because the mean of its divisors is an integer number (123228648).

Almost surely, 2^492870181 is an apocalyptic number.

It is an amenable number.

492870181 is a deficient number, since it is larger than the sum of its proper divisors (44411).

492870181 is a wasteful number, since it uses less digits than its factorization.

492870181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44410.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 492870181 is about 22200.6797418457. The cubic root of 492870181 is about 789.9098230669.

The spelling of 492870181 in words is "four hundred ninety-two million, eight hundred seventy thousand, one hundred eighty-one".